/*! xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* vim: set ts=2: */
/*exported XLSX */
/*global global, exports, module, require:false, process:false, Buffer:false, ArrayBuffer:false */
// jeffrey: jszip import
import JSZipSync from './jszip.js';

var XLSX = {};
function make_xlsx_lib(XLSX){
  XLSX.version = '0.14.3';
  var current_codepage = 1200, current_ansi = 1252;
  /*global cptable:true, window */
  if(typeof module !== "undefined" && typeof require !== 'undefined') {
    if(typeof cptable === 'undefined') {
      if(typeof global !== 'undefined') global.cptable = undefined;
      else if(typeof window !== 'undefined') window.cptable = undefined;
    }
  }

  var VALID_ANSI = [ 874, 932, 936, 949, 950 ];
  for(var i = 0; i <= 8; ++i) VALID_ANSI.push(1250 + i);
  /* ECMA-376 Part I 18.4.1 charset to codepage mapping */
  var CS2CP = ({
    0:    1252, /* ANSI */
    1:   65001, /* DEFAULT */
    2:   65001, /* SYMBOL */
    77:  10000, /* MAC */
    128:   932, /* SHIFTJIS */
    129:   949, /* HANGUL */
    130:  1361, /* JOHAB */
    134:   936, /* GB2312 */
    136:   950, /* CHINESEBIG5 */
    161:  1253, /* GREEK */
    162:  1254, /* TURKISH */
    163:  1258, /* VIETNAMESE */
    177:  1255, /* HEBREW */
    178:  1256, /* ARABIC */
    186:  1257, /* BALTIC */
    204:  1251, /* RUSSIAN */
    222:   874, /* THAI */
    238:  1250, /* EASTEUROPE */
    255:  1252, /* OEM */
    69:   6969  /* MISC */
  });

  var set_ansi = function(cp) { if(VALID_ANSI.indexOf(cp) == -1) return; current_ansi = CS2CP[0] = cp; };
  function reset_ansi() { set_ansi(1252); }

  var set_cp = function(cp) { current_codepage = cp; set_ansi(cp); };
  function reset_cp() { set_cp(1200); reset_ansi(); }

  function char_codes(data) { var o = []; for(var i = 0, len = data.length; i < len; ++i) o[i] = data.charCodeAt(i); return o; }

  function utf16leread(data) {
    var o = [];
    for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i) + (data.charCodeAt(2*i+1)<<8));
    return o.join("");
  }
  function utf16beread(data) {
    var o = [];
    for(var i = 0; i < (data.length>>1); ++i) o[i] = String.fromCharCode(data.charCodeAt(2*i+1) + (data.charCodeAt(2*i)<<8));
    return o.join("");
  }

  var debom = function(data) {
    var c1 = data.charCodeAt(0), c2 = data.charCodeAt(1);
    if(c1 == 0xFF && c2 == 0xFE) return utf16leread(data.slice(2));
    if(c1 == 0xFE && c2 == 0xFF) return utf16beread(data.slice(2));
    if(c1 == 0xFEFF) return data.slice(1);
    return data;
  };

  var _getchar = function _gc1(x) { return String.fromCharCode(x); };
  if(typeof cptable !== 'undefined') {
    set_cp = function(cp) { current_codepage = cp; };
    debom = function(data) {
      if(data.charCodeAt(0) === 0xFF && data.charCodeAt(1) === 0xFE) { return cptable.utils.decode(1200, char_codes(data.slice(2))); }
      return data;
    };
    _getchar = function _gc2(x) {
      if(current_codepage === 1200) return String.fromCharCode(x);
      return cptable.utils.decode(current_codepage, [x&255,x>>8])[0];
    };
  }
  var DENSE = null;
  var DIF_XL = true;
  var Base64 = (function make_b64(){
    var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    return {
      encode: function(input) {
        var o = "";
        var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
        for(var i = 0; i < input.length; ) {
          c1 = input.charCodeAt(i++);
          e1 = (c1 >> 2);

          c2 = input.charCodeAt(i++);
          e2 = ((c1 & 3) << 4) | (c2 >> 4);

          c3 = input.charCodeAt(i++);
          e3 = ((c2 & 15) << 2) | (c3 >> 6);
          e4 = (c3 & 63);
          if (isNaN(c2)) { e3 = e4 = 64; }
          else if (isNaN(c3)) { e4 = 64; }
          o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
        }
        return o;
      },
      decode: function b64_decode(input) {
        var o = "";
        var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
        input = input.replace(/[^\w\+\/\=]/g, "");
        for(var i = 0; i < input.length;) {
          e1 = map.indexOf(input.charAt(i++));
          e2 = map.indexOf(input.charAt(i++));
          c1 = (e1 << 2) | (e2 >> 4);
          o += String.fromCharCode(c1);

          e3 = map.indexOf(input.charAt(i++));
          c2 = ((e2 & 15) << 4) | (e3 >> 2);
          if (e3 !== 64) { o += String.fromCharCode(c2); }

          e4 = map.indexOf(input.charAt(i++));
          c3 = ((e3 & 3) << 6) | e4;
          if (e4 !== 64) { o += String.fromCharCode(c3); }
        }
        return o;
      }
    };
  })();
  var has_buf = (typeof Buffer !== 'undefined' && typeof process !== 'undefined' && typeof process.versions !== 'undefined' && !!process.versions.node);

  var Buffer_from = function(){};

  if(typeof Buffer !== 'undefined') {
    var nbfs = !Buffer.from;
    if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
    Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
    // $FlowIgnore
    if(!Buffer.alloc) Buffer.alloc = function(n) { return new Buffer(n); };
    // $FlowIgnore
    if(!Buffer.allocUnsafe) Buffer.allocUnsafe = function(n) { return new Buffer(n); };
  }

  function new_raw_buf(len) {
    /* jshint -W056 */
    return has_buf ? Buffer.alloc(len) : new Array(len);
    /* jshint +W056 */
  }

  function new_unsafe_buf(len) {
    /* jshint -W056 */
    return has_buf ? Buffer.allocUnsafe(len) : new Array(len);
    /* jshint +W056 */
  }

  var s2a = function s2a(s) {
    // $FlowIgnore
    if(has_buf) return Buffer_from(s, "binary");
    return s.split("").map(function(x){ return x.charCodeAt(0) & 0xff; });
  };

  function s2ab(s) {
    if(typeof ArrayBuffer === 'undefined') return s2a(s);
    var buf = new ArrayBuffer(s.length), view = new Uint8Array(buf);
    for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
    return buf;
  }

  function a2s(data) {
    if(Array.isArray(data)) return data.map(_chr).join("");
    var o = []; for(var i = 0; i < data.length; ++i) o[i] = _chr(data[i]); return o.join("");
  }

  function a2u(data) {
    if(typeof Uint8Array === 'undefined') throw new Error("Unsupported");
    return new Uint8Array(data);
  }

  function ab2a(data) {
    if(typeof ArrayBuffer == 'undefined') throw new Error("Unsupported");
    if(data instanceof ArrayBuffer) return ab2a(new Uint8Array(data));
    var o = new Array(data.length);
    for(var i = 0; i < data.length; ++i) o[i] = data[i];
    return o;
  }

  var bconcat = function(bufs) { return [].concat.apply([], bufs); };

  var chr0 = /\u0000/g, chr1 = /[\u0001-\u0006]/g;
  /* ssf.js (C) 2013-present SheetJS -- http://sheetjs.com */
  /*jshint -W041 */
  var SSF = ({});
  var make_ssf = function make_ssf(SSF){
    SSF.version = '0.10.2';
    function _strrev(x) { var o = "", i = x.length-1; while(i>=0) o += x.charAt(i--); return o; }
    function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }
    function pad0(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
    function pad_(v,d){var t=""+v;return t.length>=d?t:fill(' ',d-t.length)+t;}
    function rpad_(v,d){var t=""+v; return t.length>=d?t:t+fill(' ',d-t.length);}
    function pad0r1(v,d){var t=""+Math.round(v); return t.length>=d?t:fill('0',d-t.length)+t;}
    function pad0r2(v,d){var t=""+v; return t.length>=d?t:fill('0',d-t.length)+t;}
    var p2_32 = Math.pow(2,32);
    function pad0r(v,d){if(v>p2_32||v<-p2_32) return pad0r1(v,d); var i = Math.round(v); return pad0r2(i,d); }
    function isgeneral(s, i) { i = i || 0; return s.length >= 7 + i && (s.charCodeAt(i)|32) === 103 && (s.charCodeAt(i+1)|32) === 101 && (s.charCodeAt(i+2)|32) === 110 && (s.charCodeAt(i+3)|32) === 101 && (s.charCodeAt(i+4)|32) === 114 && (s.charCodeAt(i+5)|32) === 97 && (s.charCodeAt(i+6)|32) === 108; }
    var days = [
      ['Sun', 'Sunday'],
      ['Mon', 'Monday'],
      ['Tue', 'Tuesday'],
      ['Wed', 'Wednesday'],
      ['Thu', 'Thursday'],
      ['Fri', 'Friday'],
      ['Sat', 'Saturday']
    ];
    var months = [
      ['J', 'Jan', 'January'],
      ['F', 'Feb', 'February'],
      ['M', 'Mar', 'March'],
      ['A', 'Apr', 'April'],
      ['M', 'May', 'May'],
      ['J', 'Jun', 'June'],
      ['J', 'Jul', 'July'],
      ['A', 'Aug', 'August'],
      ['S', 'Sep', 'September'],
      ['O', 'Oct', 'October'],
      ['N', 'Nov', 'November'],
      ['D', 'Dec', 'December']
    ];
    function init_table(t) {
      t[0]=  'General';
      t[1]=  '0';
      t[2]=  '0.00';
      t[3]=  '#,##0';
      t[4]=  '#,##0.00';
      t[9]=  '0%';
      t[10]= '0.00%';
      t[11]= '0.00E+00';
      t[12]= '# ?/?';
      t[13]= '# ??/??';
      t[14]= 'm/d/yy';
      t[15]= 'd-mmm-yy';
      t[16]= 'd-mmm';
      t[17]= 'mmm-yy';
      t[18]= 'h:mm AM/PM';
      t[19]= 'h:mm:ss AM/PM';
      t[20]= 'h:mm';
      t[21]= 'h:mm:ss';
      t[22]= 'm/d/yy h:mm';
      t[37]= '#,##0 ;(#,##0)';
      t[38]= '#,##0 ;[Red](#,##0)';
      t[39]= '#,##0.00;(#,##0.00)';
      t[40]= '#,##0.00;[Red](#,##0.00)';
      t[45]= 'mm:ss';
      t[46]= '[h]:mm:ss';
      t[47]= 'mmss.0';
      t[48]= '##0.0E+0';
      t[49]= '@';
      t[56]= '"上午/下午 "hh"時"mm"分"ss"秒 "';
      t[65535]= 'General';
    }

    var table_fmt = {};
    init_table(table_fmt);
    function frac(x, D, mixed) {
      var sgn = x < 0 ? -1 : 1;
      var B = x * sgn;
      var P_2 = 0, P_1 = 1, P = 0;
      var Q_2 = 1, Q_1 = 0, Q = 0;
      var A = Math.floor(B);
      while(Q_1 < D) {
        A = Math.floor(B);
        P = A * P_1 + P_2;
        Q = A * Q_1 + Q_2;
        if((B - A) < 0.00000005) break;
        B = 1 / (B - A);
        P_2 = P_1; P_1 = P;
        Q_2 = Q_1; Q_1 = Q;
      }
      if(Q > D) { if(Q_1 > D) { Q = Q_2; P = P_2; } else { Q = Q_1; P = P_1; } }
      if(!mixed) return [0, sgn * P, Q];
      var q = Math.floor(sgn * P/Q);
      return [q, sgn*P - q*Q, Q];
    }
    function parse_date_code(v,opts,b2) {
      if(v > 2958465 || v < 0) return null;
      var date = (v|0), time = Math.floor(86400 * (v - date)), dow=0;
      var dout=[];
      var out={D:date, T:time, u:86400*(v-date)-time,y:0,m:0,d:0,H:0,M:0,S:0,q:0};
      if(Math.abs(out.u) < 1e-6) out.u = 0;
      if(opts && opts.date1904) date += 1462;
      if(out.u > 0.9999) {
        out.u = 0;
        if(++time == 86400) { out.T = time = 0; ++date; ++out.D; }
      }
      if(date === 60) {dout = b2 ? [1317,10,29] : [1900,2,29]; dow=3;}
      else if(date === 0) {dout = b2 ? [1317,8,29] : [1900,1,0]; dow=6;}
      else {
        if(date > 60) --date;
        /* 1 = Jan 1 1900 in Gregorian */
        var d = new Date(1900, 0, 1);
        d.setDate(d.getDate() + date - 1);
        dout = [d.getFullYear(), d.getMonth()+1,d.getDate()];
        dow = d.getDay();
        if(date < 60) dow = (dow + 6) % 7;
        if(b2) dow = fix_hijri(d, dout);
      }
      out.y = dout[0]; out.m = dout[1]; out.d = dout[2];
      out.S = time % 60; time = Math.floor(time / 60);
      out.M = time % 60; time = Math.floor(time / 60);
      out.H = time;
      out.q = dow;
      return out;
    }
    SSF.parse_date_code = parse_date_code;
    var basedate = new Date(1899, 11, 31, 0, 0, 0);
    var dnthresh = basedate.getTime();
    var base1904 = new Date(1900, 2, 1, 0, 0, 0);
    function datenum_local(v, date1904) {
      var epoch = v.getTime();
      if(date1904) epoch -= 1461*24*60*60*1000;
      else if(v >= base1904) epoch += 24*60*60*1000;
      return (epoch - (dnthresh + (v.getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000)) / (24 * 60 * 60 * 1000);
    }
    function general_fmt_int(v) { return v.toString(10); }
    SSF._general_int = general_fmt_int;
    var general_fmt_num = (function make_general_fmt_num() {
      var gnr1 = /\.(\d*[1-9])0+$/, gnr2 = /\.0*$/, gnr4 = /\.(\d*[1-9])0+/, gnr5 = /\.0*[Ee]/, gnr6 = /(E[+-])(\d)$/;
      function gfn2(v) {
        var w = (v<0?12:11);
        var o = gfn5(v.toFixed(12)); if(o.length <= w) return o;
        o = v.toPrecision(10); if(o.length <= w) return o;
        return v.toExponential(5);
      }
      function gfn3(v) {
        var o = v.toFixed(11).replace(gnr1,".$1");
        if(o.length > (v<0?12:11)) o = v.toPrecision(6);
        return o;
      }
      function gfn4(o) {
        for(var i = 0; i != o.length; ++i) if((o.charCodeAt(i) | 0x20) === 101) return o.replace(gnr4,".$1").replace(gnr5,"E").replace("e","E").replace(gnr6,"$10$2");
        return o;
      }
      function gfn5(o) {
        return o.indexOf(".") > -1 ? o.replace(gnr2,"").replace(gnr1,".$1") : o;
      }
      return function general_fmt_num(v) {
        var V = Math.floor(Math.log(Math.abs(v))*Math.LOG10E), o;
        if(V >= -4 && V <= -1) o = v.toPrecision(10+V);
        else if(Math.abs(V) <= 9) o = gfn2(v);
        else if(V === 10) o = v.toFixed(10).substr(0,12);
        else o = gfn3(v);
        return gfn5(gfn4(o));
      };})();
    SSF._general_num = general_fmt_num;
    function general_fmt(v, opts) {
      switch(typeof v) {
        case 'string': return v;
        case 'boolean': return v ? "TRUE" : "FALSE";
        case 'number': return (v|0) === v ? general_fmt_int(v) : general_fmt_num(v);
        case 'undefined': return "";
        case 'object':
          if(v == null) return "";
          if(v instanceof Date) return format(14, datenum_local(v, opts && opts.date1904), opts);
      }
      throw new Error("unsupported value in General format: " + v);
    }
    SSF._general = general_fmt;
    function fix_hijri() { return 0; }
    /*jshint -W086 */
    function write_date(type, fmt, val, ss0) {
      var o="", ss=0, tt=0, y = val.y, out, outl = 0;
      switch(type) {
        case 98: /* 'b' buddhist year */
          y = val.y + 543;
        /* falls through */
        case 121: /* 'y' year */
          switch(fmt.length) {
            case 1: case 2: out = y % 100; outl = 2; break;
            default: out = y % 10000; outl = 4; break;
          } break;
        case 109: /* 'm' month */
          switch(fmt.length) {
            case 1: case 2: out = val.m; outl = fmt.length; break;
            case 3: return months[val.m-1][1];
            case 5: return months[val.m-1][0];
            default: return months[val.m-1][2];
          } break;
        case 100: /* 'd' day */
          switch(fmt.length) {
            case 1: case 2: out = val.d; outl = fmt.length; break;
            case 3: return days[val.q][0];
            default: return days[val.q][1];
          } break;
        case 104: /* 'h' 12-hour */
          switch(fmt.length) {
            case 1: case 2: out = 1+(val.H+11)%12; outl = fmt.length; break;
            default: throw 'bad hour format: ' + fmt;
          } break;
        case 72: /* 'H' 24-hour */
          switch(fmt.length) {
            case 1: case 2: out = val.H; outl = fmt.length; break;
            default: throw 'bad hour format: ' + fmt;
          } break;
        case 77: /* 'M' minutes */
          switch(fmt.length) {
            case 1: case 2: out = val.M; outl = fmt.length; break;
            default: throw 'bad minute format: ' + fmt;
          } break;
        case 115: /* 's' seconds */
          if(fmt != 's' && fmt != 'ss' && fmt != '.0' && fmt != '.00' && fmt != '.000') throw 'bad second format: ' + fmt;
          if(val.u === 0 && (fmt == "s" || fmt == "ss")) return pad0(val.S, fmt.length);
          if(ss0 >= 2) tt = ss0 === 3 ? 1000 : 100;
          else tt = ss0 === 1 ? 10 : 1;
          ss = Math.round((tt)*(val.S + val.u));
          if(ss >= 60*tt) ss = 0;
          if(fmt === 's') return ss === 0 ? "0" : ""+ss/tt;
          o = pad0(ss,2 + ss0);
          if(fmt === 'ss') return o.substr(0,2);
          return "." + o.substr(2,fmt.length-1);
        case 90: /* 'Z' absolute time */
          switch(fmt) {
            case '[h]': case '[hh]': out = val.D*24+val.H; break;
            case '[m]': case '[mm]': out = (val.D*24+val.H)*60+val.M; break;
            case '[s]': case '[ss]': out = ((val.D*24+val.H)*60+val.M)*60+Math.round(val.S+val.u); break;
            default: throw 'bad abstime format: ' + fmt;
          } outl = fmt.length === 3 ? 1 : 2; break;
        case 101: /* 'e' era */
          out = y; outl = 1;
      }
      if(outl > 0) return pad0(out, outl); else return "";
    }
    /*jshint +W086 */
    function commaify(s) {
      var w = 3;
      if(s.length <= w) return s;
      var j = (s.length % w), o = s.substr(0,j);
      for(; j!=s.length; j+=w) o+=(o.length > 0 ? "," : "") + s.substr(j,w);
      return o;
    }
    var write_num = (function make_write_num(){
      var pct1 = /%/g;
      function write_num_pct(type, fmt, val){
        var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
        return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
      }
      function write_num_cm(type, fmt, val){
        var idx = fmt.length - 1;
        while(fmt.charCodeAt(idx-1) === 44) --idx;
        return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
      }
      function write_num_exp(fmt, val){
        var o;
        var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
        if(fmt.match(/^#+0.0E\+0$/)) {
          if(val == 0) return "0.0E+0";
          else if(val < 0) return "-" + write_num_exp(fmt, -val);
          var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
          var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
          if(ee < 0) ee += period;
          o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
          if(o.indexOf("e") === -1) {
            var fakee = Math.floor(Math.log(val)*Math.LOG10E);
            if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
            else o += "E+" + (fakee - ee);
            while(o.substr(0,2) === "0.") {
              o = o.charAt(0) + o.substr(2,period) + "." + o.substr(2+period);
              o = o.replace(/^0+([1-9])/,"$1").replace(/^0+\./,"0.");
            }
            o = o.replace(/\+-/,"-");
          }
          o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
        } else o = val.toExponential(idx);
        if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
        if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
        return o.replace("e","E");
      }
      var frac1 = /# (\?+)( ?)\/( ?)(\d+)/;
      function write_num_f1(r, aval, sign) {
        var den = parseInt(r[4],10), rr = Math.round(aval * den), base = Math.floor(rr/den);
        var myn = (rr - base*den), myd = den;
        return sign + (base === 0 ? "" : ""+base) + " " + (myn === 0 ? fill(" ", r[1].length + 1 + r[4].length) : pad_(myn,r[1].length) + r[2] + "/" + r[3] + pad0(myd,r[4].length));
      }
      function write_num_f2(r, aval, sign) {
        return sign + (aval === 0 ? "" : ""+aval) + fill(" ", r[1].length + 2 + r[4].length);
      }
      var dec1 = /^#*0*\.([0#]+)/;
      var closeparen = /\).*[0#]/;
      var phone = /\(###\) ###\\?-####/;
      function hashq(str) {
        var o = "", cc;
        for(var i = 0; i != str.length; ++i) switch((cc=str.charCodeAt(i))) {
          case 35: break;
          case 63: o+= " "; break;
          case 48: o+= "0"; break;
          default: o+= String.fromCharCode(cc);
        }
        return o;
      }
      function rnd(val, d) { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
      function dec(val, d) {
        if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
          return 0;
        }
        return Math.round((val-Math.floor(val))*Math.pow(10,d));
      }
      function carry(val, d) {
        if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
          return 1;
        }
        return 0;
      }
      function flr(val) { if(val < 2147483647 && val > -2147483648) return ""+(val >= 0 ? (val|0) : (val-1|0)); return ""+Math.floor(val); }
      function write_num_flt(type, fmt, val) {
        if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
          var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
          if(val >= 0) return write_num_flt('n', ffmt, val);
          return '(' + write_num_flt('n', ffmt, -val) + ')';
        }
        if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm(type, fmt, val);
        if(fmt.indexOf('%') !== -1) return write_num_pct(type, fmt, val);
        if(fmt.indexOf('E') !== -1) return write_num_exp(fmt, val);
        if(fmt.charCodeAt(0) === 36) return "$"+write_num_flt(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
        var o;
        var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
        if(fmt.match(/^00+$/)) return sign + pad0r(aval,fmt.length);
        if(fmt.match(/^[#?]+$/)) {
          o = pad0r(val,0); if(o === "0") o = "";
          return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
        }
        if((r = fmt.match(frac1))) return write_num_f1(r, aval, sign);
        if(fmt.match(/^#+0+$/)) return sign + pad0r(aval,fmt.length - fmt.indexOf("0"));
        if((r = fmt.match(dec1))) {
          o = rnd(val, r[1].length).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1])).replace(/\.(\d*)$/,function($$, $1) { return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
          return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
        }
        fmt = fmt.replace(/^#+([0.])/, "$1");
        if((r = fmt.match(/^(0*)\.(#*)$/))) {
          return sign + rnd(aval, r[2].length).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
        }
        if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify(pad0r(aval,0));
        if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
          return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(""+(Math.floor(val) + carry(val, r[1].length))) + "." + pad0(dec(val, r[1].length),r[1].length);
        }
        if((r = fmt.match(/^#,#*,#0/))) return write_num_flt(type,fmt.replace(/^#,#*,/,""),val);
        if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
          o = _strrev(write_num_flt(type, fmt.replace(/[\\-]/g,""), val));
          ri = 0;
          return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
        }
        if(fmt.match(phone)) {
          o = write_num_flt(type, "##########", val);
          return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
        }
        var oa = "";
        if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
          ri = Math.min(r[4].length,7);
          ff = frac(aval, Math.pow(10,ri)-1, false);
          o = "" + sign;
          oa = write_num("n", r[1], ff[1]);
          if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
          o += oa + r[2] + "/" + r[3];
          oa = rpad_(ff[2],ri);
          if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
          o += oa;
          return o;
        }
        if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
          ri = Math.min(Math.max(r[1].length, r[4].length),7);
          ff = frac(aval, Math.pow(10,ri)-1, true);
          return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
        }
        if((r = fmt.match(/^[#0?]+$/))) {
          o = pad0r(val, 0);
          if(fmt.length <= o.length) return o;
          return hashq(fmt.substr(0,fmt.length-o.length)) + o;
        }
        if((r = fmt.match(/^([#0?]+)\.([#0]+)$/))) {
          o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
          ri = o.indexOf(".");
          var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
          return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
        }
        if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
          ri = dec(val, r[1].length);
          return val < 0 ? "-" + write_num_flt(type, fmt, -val) : commaify(flr(val)).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(ri,r[1].length);
        }
        switch(fmt) {
          case "###,##0.00": return write_num_flt(type, "#,##0.00", val);
          case "###,###":
          case "##,###":
          case "#,###": var x = commaify(pad0r(aval,0)); return x !== "0" ? sign + x : "";
          case "###,###.00": return write_num_flt(type, "###,##0.00",val).replace(/^0\./,".");
          case "#,###.00": return write_num_flt(type, "#,##0.00",val).replace(/^0\./,".");
          default:
        }
        throw new Error("unsupported format |" + fmt + "|");
      }
      function write_num_cm2(type, fmt, val){
        var idx = fmt.length - 1;
        while(fmt.charCodeAt(idx-1) === 44) --idx;
        return write_num(type, fmt.substr(0,idx), val / Math.pow(10,3*(fmt.length-idx)));
      }
      function write_num_pct2(type, fmt, val){
        var sfmt = fmt.replace(pct1,""), mul = fmt.length - sfmt.length;
        return write_num(type, sfmt, val * Math.pow(10,2*mul)) + fill("%",mul);
      }
      function write_num_exp2(fmt, val){
        var o;
        var idx = fmt.indexOf("E") - fmt.indexOf(".") - 1;
        if(fmt.match(/^#+0.0E\+0$/)) {
          if(val == 0) return "0.0E+0";
          else if(val < 0) return "-" + write_num_exp2(fmt, -val);
          var period = fmt.indexOf("."); if(period === -1) period=fmt.indexOf('E');
          var ee = Math.floor(Math.log(val)*Math.LOG10E)%period;
          if(ee < 0) ee += period;
          o = (val/Math.pow(10,ee)).toPrecision(idx+1+(period+ee)%period);
          if(!o.match(/[Ee]/)) {
            var fakee = Math.floor(Math.log(val)*Math.LOG10E);
            if(o.indexOf(".") === -1) o = o.charAt(0) + "." + o.substr(1) + "E+" + (fakee - o.length+ee);
            else o += "E+" + (fakee - ee);
            o = o.replace(/\+-/,"-");
          }
          o = o.replace(/^([+-]?)(\d*)\.(\d*)[Ee]/,function($$,$1,$2,$3) { return $1 + $2 + $3.substr(0,(period+ee)%period) + "." + $3.substr(ee) + "E"; });
        } else o = val.toExponential(idx);
        if(fmt.match(/E\+00$/) && o.match(/e[+-]\d$/)) o = o.substr(0,o.length-1) + "0" + o.charAt(o.length-1);
        if(fmt.match(/E\-/) && o.match(/e\+/)) o = o.replace(/e\+/,"e");
        return o.replace("e","E");
      }
      function write_num_int(type, fmt, val) {
        if(type.charCodeAt(0) === 40 && !fmt.match(closeparen)) {
          var ffmt = fmt.replace(/\( */,"").replace(/ \)/,"").replace(/\)/,"");
          if(val >= 0) return write_num_int('n', ffmt, val);
          return '(' + write_num_int('n', ffmt, -val) + ')';
        }
        if(fmt.charCodeAt(fmt.length - 1) === 44) return write_num_cm2(type, fmt, val);
        if(fmt.indexOf('%') !== -1) return write_num_pct2(type, fmt, val);
        if(fmt.indexOf('E') !== -1) return write_num_exp2(fmt, val);
        if(fmt.charCodeAt(0) === 36) return "$"+write_num_int(type,fmt.substr(fmt.charAt(1)==' '?2:1),val);
        var o;
        var r, ri, ff, aval = Math.abs(val), sign = val < 0 ? "-" : "";
        if(fmt.match(/^00+$/)) return sign + pad0(aval,fmt.length);
        if(fmt.match(/^[#?]+$/)) {
          o = (""+val); if(val === 0) o = "";
          return o.length > fmt.length ? o : hashq(fmt.substr(0,fmt.length-o.length)) + o;
        }
        if((r = fmt.match(frac1))) return write_num_f2(r, aval, sign);
        if(fmt.match(/^#+0+$/)) return sign + pad0(aval,fmt.length - fmt.indexOf("0"));
        if((r = fmt.match(dec1))) {
          o = (""+val).replace(/^([^\.]+)$/,"$1."+hashq(r[1])).replace(/\.$/,"."+hashq(r[1]));
          o = o.replace(/\.(\d*)$/,function($$, $1) {
            return "." + $1 + fill("0", hashq(r[1]).length-$1.length); });
          return fmt.indexOf("0.") !== -1 ? o : o.replace(/^0\./,".");
        }
        fmt = fmt.replace(/^#+([0.])/, "$1");
        if((r = fmt.match(/^(0*)\.(#*)$/))) {
          return sign + (""+aval).replace(/\.(\d*[1-9])0*$/,".$1").replace(/^(-?\d*)$/,"$1.").replace(/^0\./,r[1].length?"0.":".");
        }
        if((r = fmt.match(/^#{1,3},##0(\.?)$/))) return sign + commaify((""+aval));
        if((r = fmt.match(/^#,##0\.([#0]*0)$/))) {
          return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify((""+val)) + "." + fill('0',r[1].length);
        }
        if((r = fmt.match(/^#,#*,#0/))) return write_num_int(type,fmt.replace(/^#,#*,/,""),val);
        if((r = fmt.match(/^([0#]+)(\\?-([0#]+))+$/))) {
          o = _strrev(write_num_int(type, fmt.replace(/[\\-]/g,""), val));
          ri = 0;
          return _strrev(_strrev(fmt.replace(/\\/g,"")).replace(/[0#]/g,function(x){return ri<o.length?o.charAt(ri++):x==='0'?'0':"";}));
        }
        if(fmt.match(phone)) {
          o = write_num_int(type, "##########", val);
          return "(" + o.substr(0,3) + ") " + o.substr(3, 3) + "-" + o.substr(6);
        }
        var oa = "";
        if((r = fmt.match(/^([#0?]+)( ?)\/( ?)([#0?]+)/))) {
          ri = Math.min(r[4].length,7);
          ff = frac(aval, Math.pow(10,ri)-1, false);
          o = "" + sign;
          oa = write_num("n", r[1], ff[1]);
          if(oa.charAt(oa.length-1) == " ") oa = oa.substr(0,oa.length-1) + "0";
          o += oa + r[2] + "/" + r[3];
          oa = rpad_(ff[2],ri);
          if(oa.length < r[4].length) oa = hashq(r[4].substr(r[4].length-oa.length)) + oa;
          o += oa;
          return o;
        }
        if((r = fmt.match(/^# ([#0?]+)( ?)\/( ?)([#0?]+)/))) {
          ri = Math.min(Math.max(r[1].length, r[4].length),7);
          ff = frac(aval, Math.pow(10,ri)-1, true);
          return sign + (ff[0]||(ff[1] ? "" : "0")) + " " + (ff[1] ? pad_(ff[1],ri) + r[2] + "/" + r[3] + rpad_(ff[2],ri): fill(" ", 2*ri+1 + r[2].length + r[3].length));
        }
        if((r = fmt.match(/^[#0?]+$/))) {
          o = "" + val;
          if(fmt.length <= o.length) return o;
          return hashq(fmt.substr(0,fmt.length-o.length)) + o;
        }
        if((r = fmt.match(/^([#0]+)\.([#0]+)$/))) {
          o = "" + val.toFixed(Math.min(r[2].length,10)).replace(/([^0])0+$/,"$1");
          ri = o.indexOf(".");
          var lres = fmt.indexOf(".") - ri, rres = fmt.length - o.length - lres;
          return hashq(fmt.substr(0,lres) + o + fmt.substr(fmt.length-rres));
        }
        if((r = fmt.match(/^00,000\.([#0]*0)$/))) {
          return val < 0 ? "-" + write_num_int(type, fmt, -val) : commaify(""+val).replace(/^\d,\d{3}$/,"0$&").replace(/^\d*$/,function($$) { return "00," + ($$.length < 3 ? pad0(0,3-$$.length) : "") + $$; }) + "." + pad0(0,r[1].length);
        }
        switch(fmt) {
          case "###,###":
          case "##,###":
          case "#,###": var x = commaify(""+aval); return x !== "0" ? sign + x : "";
          default:
            if(fmt.match(/\.[0#?]*$/)) return write_num_int(type, fmt.slice(0,fmt.lastIndexOf(".")), val) + hashq(fmt.slice(fmt.lastIndexOf(".")));
        }
        throw new Error("unsupported format |" + fmt + "|");
      }
      return function write_num(type, fmt, val) {
        return (val|0) === val ? write_num_int(type, fmt, val) : write_num_flt(type, fmt, val);
      };})();
    function split_fmt(fmt) {
      var out = [];
      var in_str = false/*, cc*/;
      for(var i = 0, j = 0; i < fmt.length; ++i) switch((/*cc=*/fmt.charCodeAt(i))) {
        case 34: /* '"' */
          in_str = !in_str; break;
        case 95: case 42: case 92: /* '_' '*' '\\' */
          ++i; break;
        case 59: /* ';' */
          out[out.length] = fmt.substr(j,i-j);
          j = i+1;
      }
      out[out.length] = fmt.substr(j);
      if(in_str === true) throw new Error("Format |" + fmt + "| unterminated string ");
      return out;
    }
    SSF._split = split_fmt;
    var abstime = /\[[HhMmSs]*\]/;
    function fmt_is_date(fmt) {
      var i = 0, /*cc = 0,*/ c = "", o = "";
      while(i < fmt.length) {
        switch((c = fmt.charAt(i))) {
          case 'G': if(isgeneral(fmt, i)) i+= 6; i++; break;
          case '"': for(;(/*cc=*/fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) ++i; ++i; break;
          case '\\': i+=2; break;
          case '_': i+=2; break;
          case '@': ++i; break;
          case 'B': case 'b':
            if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") return true;
          /* falls through */
          case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
          /* falls through */
          case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g': return true;
          case 'A': case 'a':
            if(fmt.substr(i, 3).toUpperCase() === "A/P") return true;
            if(fmt.substr(i, 5).toUpperCase() === "AM/PM") return true;
            ++i; break;
          case '[':
            o = c;
            while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
            if(o.match(abstime)) return true;
            break;
          case '.':
          /* falls through */
          case '0': case '#':
            while(i < fmt.length && ("0#?.,E+-%".indexOf(c=fmt.charAt(++i)) > -1 || (c=='\\' && fmt.charAt(i+1) == "-" && "0#".indexOf(fmt.charAt(i+2))>-1))){/* empty */}
            break;
          case '?': while(fmt.charAt(++i) === c){/* empty */} break;
          case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break;
          case '(': case ')': ++i; break;
          case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
            while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1){/* empty */} break;
          case ' ': ++i; break;
          default: ++i; break;
        }
      }
      return false;
    }
    SSF.is_date = fmt_is_date;
    function eval_fmt(fmt, v, opts, flen) {
      var out = [], o = "", i = 0, c = "", lst='t', dt, j, cc;
      var hr='H';
      /* Tokenize */
      while(i < fmt.length) {
        switch((c = fmt.charAt(i))) {
          case 'G': /* General */
            if(!isgeneral(fmt, i)) throw new Error('unrecognized character ' + c + ' in ' +fmt);
            out[out.length] = {t:'G', v:'General'}; i+=7; break;
          case '"': /* Literal text */
            for(o="";(cc=fmt.charCodeAt(++i)) !== 34 && i < fmt.length;) o += String.fromCharCode(cc);
            out[out.length] = {t:'t', v:o}; ++i; break;
          case '\\': var w = fmt.charAt(++i), t = (w === "(" || w === ")") ? w : 't';
            out[out.length] = {t:t, v:w}; ++i; break;
          case '_': out[out.length] = {t:'t', v:" "}; i+=2; break;
          case '@': /* Text Placeholder */
            out[out.length] = {t:'T', v:v}; ++i; break;
          case 'B': case 'b':
            if(fmt.charAt(i+1) === "1" || fmt.charAt(i+1) === "2") {
              if(dt==null) { dt=parse_date_code(v, opts, fmt.charAt(i+1) === "2"); if(dt==null) return ""; }
              out[out.length] = {t:'X', v:fmt.substr(i,2)}; lst = c; i+=2; break;
            }
          /* falls through */
          case 'M': case 'D': case 'Y': case 'H': case 'S': case 'E':
            c = c.toLowerCase();
          /* falls through */
          case 'm': case 'd': case 'y': case 'h': case 's': case 'e': case 'g':
            if(v < 0) return "";
            if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
            o = c; while(++i < fmt.length && fmt.charAt(i).toLowerCase() === c) o+=c;
            if(c === 'm' && lst.toLowerCase() === 'h') c = 'M';
            if(c === 'h') c = hr;
            out[out.length] = {t:c, v:o}; lst = c; break;
          case 'A': case 'a':
            var q={t:c, v:c};
            if(dt==null) dt=parse_date_code(v, opts);
            if(fmt.substr(i, 3).toUpperCase() === "A/P") { if(dt!=null) q.v = dt.H >= 12 ? "P" : "A"; q.t = 'T'; hr='h';i+=3;}
            else if(fmt.substr(i,5).toUpperCase() === "AM/PM") { if(dt!=null) q.v = dt.H >= 12 ? "PM" : "AM"; q.t = 'T'; i+=5; hr='h'; }
            else { q.t = "t"; ++i; }
            if(dt==null && q.t === 'T') return "";
            out[out.length] = q; lst = c; break;
          case '[':
            o = c;
            while(fmt.charAt(i++) !== ']' && i < fmt.length) o += fmt.charAt(i);
            if(o.slice(-1) !== ']') throw 'unterminated "[" block: |' + o + '|';
            if(o.match(abstime)) {
              if(dt==null) { dt=parse_date_code(v, opts); if(dt==null) return ""; }
              out[out.length] = {t:'Z', v:o.toLowerCase()};
              lst = o.charAt(1);
            } else if(o.indexOf("$") > -1) {
              o = (o.match(/\$([^-\[\]]*)/)||[])[1]||"$";
              if(!fmt_is_date(fmt)) out[out.length] = {t:'t',v:o};
            }
            break;
          /* Numbers */
          case '.':
            if(dt != null) {
              o = c; while(++i < fmt.length && (c=fmt.charAt(i)) === "0") o += c;
              out[out.length] = {t:'s', v:o}; break;
            }
          /* falls through */
          case '0': case '#':
            o = c; while((++i < fmt.length && "0#?.,E+-%".indexOf(c=fmt.charAt(i)) > -1) || (c=='\\' && fmt.charAt(i+1) == "-" && i < fmt.length - 2 && "0#".indexOf(fmt.charAt(i+2))>-1)) o += c;
            out[out.length] = {t:'n', v:o}; break;
          case '?':
            o = c; while(fmt.charAt(++i) === c) o+=c;
            out[out.length] = {t:c, v:o}; lst = c; break;
          case '*': ++i; if(fmt.charAt(i) == ' ' || fmt.charAt(i) == '*') ++i; break; // **
          case '(': case ')': out[out.length] = {t:(flen===1?'t':c), v:c}; ++i; break;
          case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
            o = c; while(i < fmt.length && "0123456789".indexOf(fmt.charAt(++i)) > -1) o+=fmt.charAt(i);
            out[out.length] = {t:'D', v:o}; break;
          case ' ': out[out.length] = {t:c, v:c}; ++i; break;
          default:
            if(",$-+/():!^&'~{}<>=€acfijklopqrtuvwxzP".indexOf(c) === -1) throw new Error('unrecognized character ' + c + ' in ' + fmt);
            out[out.length] = {t:'t', v:c}; ++i; break;
        }
      }
      var bt = 0, ss0 = 0, ssm;
      for(i=out.length-1, lst='t'; i >= 0; --i) {
        switch(out[i].t) {
          case 'h': case 'H': out[i].t = hr; lst='h'; if(bt < 1) bt = 1; break;
          case 's':
            if((ssm=out[i].v.match(/\.0+$/))) ss0=Math.max(ss0,ssm[0].length-1);
            if(bt < 3) bt = 3;
          /* falls through */
          case 'd': case 'y': case 'M': case 'e': lst=out[i].t; break;
          case 'm': if(lst === 's') { out[i].t = 'M'; if(bt < 2) bt = 2; } break;
          case 'X': /*if(out[i].v === "B2");*/
            break;
          case 'Z':
            if(bt < 1 && out[i].v.match(/[Hh]/)) bt = 1;
            if(bt < 2 && out[i].v.match(/[Mm]/)) bt = 2;
            if(bt < 3 && out[i].v.match(/[Ss]/)) bt = 3;
        }
      }
      switch(bt) {
        case 0: break;
        case 1:
          if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
          if(dt.S >=  60) { dt.S = 0; ++dt.M; }
          if(dt.M >=  60) { dt.M = 0; ++dt.H; }
          break;
        case 2:
          if(dt.u >= 0.5) { dt.u = 0; ++dt.S; }
          if(dt.S >=  60) { dt.S = 0; ++dt.M; }
          break;
      }
      /* replace fields */
      var nstr = "", jj;
      for(i=0; i < out.length; ++i) {
        switch(out[i].t) {
          case 't': case 'T': case ' ': case 'D': break;
          case 'X': out[i].v = ""; out[i].t = ";"; break;
          case 'd': case 'm': case 'y': case 'h': case 'H': case 'M': case 's': case 'e': case 'b': case 'Z':
            out[i].v = write_date(out[i].t.charCodeAt(0), out[i].v, dt, ss0);
            out[i].t = 't'; break;
          case 'n': case '(': case '?':
            jj = i+1;
            while(out[jj] != null && (
              (c=out[jj].t) === "?" || c === "D" ||
              ((c === " " || c === "t") && out[jj+1] != null && (out[jj+1].t === '?' || out[jj+1].t === "t" && out[jj+1].v === '/')) ||
              (out[i].t === '(' && (c === ' ' || c === 'n' || c === ')')) ||
              (c === 't' && (out[jj].v === '/' || out[jj].v === ' ' && out[jj+1] != null && out[jj+1].t == '?'))
            )) {
              out[i].v += out[jj].v;
              out[jj] = {v:"", t:";"}; ++jj;
            }
            nstr += out[i].v;
            i = jj-1; break;
          case 'G': out[i].t = 't'; out[i].v = general_fmt(v,opts); break;
        }
      }
      var vv = "", myv, ostr;
      if(nstr.length > 0) {
        if(nstr.charCodeAt(0) == 40) /* '(' */ {
          myv = (v<0&&nstr.charCodeAt(0) === 45 ? -v : v);
          ostr = write_num('(', nstr, myv);
        } else {
          myv = (v<0 && flen > 1 ? -v : v);
          ostr = write_num('n', nstr, myv);
          if(myv < 0 && out[0] && out[0].t == 't') {
            ostr = ostr.substr(1);
            out[0].v = "-" + out[0].v;
          }
        }
        jj=ostr.length-1;
        var decpt = out.length;
        for(i=0; i < out.length; ++i) if(out[i] != null && out[i].t != 't' && out[i].v.indexOf(".") > -1) { decpt = i; break; }
        var lasti=out.length;
        if(decpt === out.length && ostr.indexOf("E") === -1) {
          for(i=out.length-1; i>= 0;--i) {
            if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
            if(jj>=out[i].v.length-1) { jj -= out[i].v.length; out[i].v = ostr.substr(jj+1, out[i].v.length); }
            else if(jj < 0) out[i].v = "";
            else { out[i].v = ostr.substr(0, jj+1); jj = -1; }
            out[i].t = 't';
            lasti = i;
          }
          if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
        }
        else if(decpt !== out.length && ostr.indexOf("E") === -1) {
          jj = ostr.indexOf(".")-1;
          for(i=decpt; i>= 0; --i) {
            if(out[i] == null || 'n?('.indexOf(out[i].t) === -1) continue;
            j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")-1:out[i].v.length-1;
            vv = out[i].v.substr(j+1);
            for(; j>=0; --j) {
              if(jj>=0 && (out[i].v.charAt(j) === "0" || out[i].v.charAt(j) === "#")) vv = ostr.charAt(jj--) + vv;
            }
            out[i].v = vv;
            out[i].t = 't';
            lasti = i;
          }
          if(jj>=0 && lasti<out.length) out[lasti].v = ostr.substr(0,jj+1) + out[lasti].v;
          jj = ostr.indexOf(".")+1;
          for(i=decpt; i<out.length; ++i) {
            if(out[i] == null || ('n?('.indexOf(out[i].t) === -1 && i !== decpt)) continue;
            j=out[i].v.indexOf(".")>-1&&i===decpt?out[i].v.indexOf(".")+1:0;
            vv = out[i].v.substr(0,j);
            for(; j<out[i].v.length; ++j) {
              if(jj<ostr.length) vv += ostr.charAt(jj++);
            }
            out[i].v = vv;
            out[i].t = 't';
            lasti = i;
          }
        }
      }
      for(i=0; i<out.length; ++i) if(out[i] != null && 'n(?'.indexOf(out[i].t)>-1) {
        myv = (flen >1 && v < 0 && i>0 && out[i-1].v === "-" ? -v:v);
        out[i].v = write_num(out[i].t, out[i].v, myv);
        out[i].t = 't';
      }
      var retval = "";
      for(i=0; i !== out.length; ++i) if(out[i] != null) retval += out[i].v;
      return retval;
    }
    SSF._eval = eval_fmt;
    var cfregex = /\[[=<>]/;
    var cfregex2 = /\[(=|>[=]?|<[>=]?)(-?\d+(?:\.\d*)?)\]/;
    function chkcond(v, rr) {
      if(rr == null) return false;
      var thresh = parseFloat(rr[2]);
      switch(rr[1]) {
        case "=":  if(v == thresh) return true; break;
        case ">":  if(v >  thresh) return true; break;
        case "<":  if(v <  thresh) return true; break;
        case "<>": if(v != thresh) return true; break;
        case ">=": if(v >= thresh) return true; break;
        case "<=": if(v <= thresh) return true; break;
      }
      return false;
    }
    function choose_fmt(f, v) {
      var fmt = split_fmt(f);
      var l = fmt.length, lat = fmt[l-1].indexOf("@");
      if(l<4 && lat>-1) --l;
      if(fmt.length > 4) throw new Error("cannot find right format for |" + fmt.join("|") + "|");
      if(typeof v !== "number") return [4, fmt.length === 4 || lat>-1?fmt[fmt.length-1]:"@"];
      switch(fmt.length) {
        case 1: fmt = lat>-1 ? ["General", "General", "General", fmt[0]] : [fmt[0], fmt[0], fmt[0], "@"]; break;
        case 2: fmt = lat>-1 ? [fmt[0], fmt[0], fmt[0], fmt[1]] : [fmt[0], fmt[1], fmt[0], "@"]; break;
        case 3: fmt = lat>-1 ? [fmt[0], fmt[1], fmt[0], fmt[2]] : [fmt[0], fmt[1], fmt[2], "@"]; break;
        case 4: break;
      }
      var ff = v > 0 ? fmt[0] : v < 0 ? fmt[1] : fmt[2];
      if(fmt[0].indexOf("[") === -1 && fmt[1].indexOf("[") === -1) return [l, ff];
      if(fmt[0].match(cfregex) != null || fmt[1].match(cfregex) != null) {
        var m1 = fmt[0].match(cfregex2);
        var m2 = fmt[1].match(cfregex2);
        return chkcond(v, m1) ? [l, fmt[0]] : chkcond(v, m2) ? [l, fmt[1]] : [l, fmt[m1 != null && m2 != null ? 2 : 1]];
      }
      return [l, ff];
    }
    function format(fmt,v,o) {
      if(o == null) o = {};
      var sfmt = "";
      switch(typeof fmt) {
        case "string":
          if(fmt == "m/d/yy" && o.dateNF) sfmt = o.dateNF;
          else sfmt = fmt;
          break;
        case "number":
          if(fmt == 14 && o.dateNF) sfmt = o.dateNF;
          else sfmt = (o.table != null ? (o.table) : table_fmt)[fmt];
          break;
      }
      if(isgeneral(sfmt,0)) return general_fmt(v, o);
      if(v instanceof Date) v = datenum_local(v, o.date1904);
      var f = choose_fmt(sfmt, v);
      if(isgeneral(f[1])) return general_fmt(v, o);
      if(v === true) v = "TRUE"; else if(v === false) v = "FALSE";
      else if(v === "" || v == null) return "";
      return eval_fmt(f[1], v, o, f[0]);
    }
    function load_entry(fmt, idx) {
      if(typeof idx != 'number') {
        idx = +idx || -1;
        for(var i = 0; i < 0x0188; ++i) {
          if(table_fmt[i] == undefined) { if(idx < 0) idx = i; continue; }
          if(table_fmt[i] == fmt) { idx = i; break; }
        }
        if(idx < 0) idx = 0x187;
      }
      table_fmt[idx] = fmt;
      return idx;
    }
    SSF.load = load_entry;
    SSF._table = table_fmt;
    SSF.get_table = function get_table() { return table_fmt; };
    SSF.load_table = function load_table(tbl) {
      for(var i=0; i!=0x0188; ++i)
        if(tbl[i] !== undefined) load_entry(tbl[i], i);
    };
    SSF.init_table = init_table;
    SSF.format = format;
  };
  make_ssf(SSF);
  /* map from xlml named formats to SSF TODO: localize */
  var XLMLFormatMap/*{[string]:string}*/ = ({
    "General Number": "General",
    "General Date": SSF._table[22],
    "Long Date": "dddd, mmmm dd, yyyy",
    "Medium Date": SSF._table[15],
    "Short Date": SSF._table[14],
    "Long Time": SSF._table[19],
    "Medium Time": SSF._table[18],
    "Short Time": SSF._table[20],
    "Currency": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
    "Fixed": SSF._table[2],
    "Standard": SSF._table[4],
    "Percent": SSF._table[10],
    "Scientific": SSF._table[11],
    "Yes/No": '"Yes";"Yes";"No";@',
    "True/False": '"True";"True";"False";@',
    "On/Off": '"Yes";"Yes";"No";@'
  });

  var SSFImplicit/*{[number]:string}*/ = ({
    "5": '"$"#,##0_);\\("$"#,##0\\)',
    "6": '"$"#,##0_);[Red]\\("$"#,##0\\)',
    "7": '"$"#,##0.00_);\\("$"#,##0.00\\)',
    "8": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
    "23": 'General', "24": 'General', "25": 'General', "26": 'General',
    "27": 'm/d/yy', "28": 'm/d/yy', "29": 'm/d/yy', "30": 'm/d/yy', "31": 'm/d/yy',
    "32": 'h:mm:ss', "33": 'h:mm:ss', "34": 'h:mm:ss', "35": 'h:mm:ss',
    "36": 'm/d/yy',
    "41": '_(* #,##0_);_(* \(#,##0\);_(* "-"_);_(@_)',
    "42": '_("$"* #,##0_);_("$"* \(#,##0\);_("$"* "-"_);_(@_)',
    "43": '_(* #,##0.00_);_(* \(#,##0.00\);_(* "-"??_);_(@_)',
    "44": '_("$"* #,##0.00_);_("$"* \(#,##0.00\);_("$"* "-"??_);_(@_)',
    "50": 'm/d/yy', "51": 'm/d/yy', "52": 'm/d/yy', "53": 'm/d/yy', "54": 'm/d/yy',
    "55": 'm/d/yy', "56": 'm/d/yy', "57": 'm/d/yy', "58": 'm/d/yy',
    "59": '0',
    "60": '0.00',
    "61": '#,##0',
    "62": '#,##0.00',
    "63": '"$"#,##0_);\\("$"#,##0\\)',
    "64": '"$"#,##0_);[Red]\\("$"#,##0\\)',
    "65": '"$"#,##0.00_);\\("$"#,##0.00\\)',
    "66": '"$"#,##0.00_);[Red]\\("$"#,##0.00\\)',
    "67": '0%',
    "68": '0.00%',
    "69": '# ?/?',
    "70": '# ??/??',
    "71": 'm/d/yy',
    "72": 'm/d/yy',
    "73": 'd-mmm-yy',
    "74": 'd-mmm',
    "75": 'mmm-yy',
    "76": 'h:mm',
    "77": 'h:mm:ss',
    "78": 'm/d/yy h:mm',
    "79": 'mm:ss',
    "80": '[h]:mm:ss',
    "81": 'mmss.0'
  });

  /* dateNF parse TODO: move to SSF */
  var dateNFregex = /[dD]+|[mM]+|[yYeE]+|[Hh]+|[Ss]+/g;
  function dateNF_regex(dateNF) {
    var fmt = typeof dateNF == "number" ? SSF._table[dateNF] : dateNF;
    fmt = fmt.replace(dateNFregex, "(\\d+)");
    return new RegExp("^" + fmt + "$");
  }
  function dateNF_fix(str, dateNF, match) {
    var Y = -1, m = -1, d = -1, H = -1, M = -1, S = -1;
    (dateNF.match(dateNFregex)||[]).forEach(function(n, i) {
      var v = parseInt(match[i+1], 10);
      switch(n.toLowerCase().charAt(0)) {
        case 'y': Y = v; break; case 'd': d = v; break;
        case 'h': H = v; break; case 's': S = v; break;
        case 'm': if(H >= 0) M = v; else m = v; break;
      }
    });
    if(S >= 0 && M == -1 && m >= 0) { M = m; m = -1; }
    var datestr = (("" + (Y>=0?Y: new Date().getFullYear())).slice(-4) + "-" + ("00" + (m>=1?m:1)).slice(-2) + "-" + ("00" + (d>=1?d:1)).slice(-2));
    if(datestr.length == 7) datestr = "0" + datestr;
    if(datestr.length == 8) datestr = "20" + datestr;
    var timestr = (("00" + (H>=0?H:0)).slice(-2) + ":" + ("00" + (M>=0?M:0)).slice(-2) + ":" + ("00" + (S>=0?S:0)).slice(-2));
    if(H == -1 && M == -1 && S == -1) return datestr;
    if(Y == -1 && m == -1 && d == -1) return timestr;
    return datestr + "T" + timestr;
  }

  var DO_NOT_EXPORT_CFB = true;
  /* cfb.js (C) 2013-present SheetJS -- http://sheetjs.com */
  /* vim: set ts=2: */
  /*jshint eqnull:true */
  /*exported CFB */
  /*global module, require:false, process:false, Buffer:false, Uint8Array:false, Uint16Array:false */

  /* crc32.js (C) 2014-present SheetJS -- http://sheetjs.com */
  /* vim: set ts=2: */
  /*exported CRC32 */
  var CRC32;
  (function (factory) {
    /*jshint ignore:start */
    /*eslint-disable */
    factory(CRC32 = {});
    /*eslint-enable */
    /*jshint ignore:end */
  }(function(CRC32) {
    CRC32.version = '1.2.0';
    /* see perf/crc32table.js */
    /*global Int32Array */
    function signed_crc_table() {
      var c = 0, table = new Array(256);

      for(var n =0; n != 256; ++n){
        c = n;
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        c = ((c&1) ? (-306674912 ^ (c >>> 1)) : (c >>> 1));
        table[n] = c;
      }

      return typeof Int32Array !== 'undefined' ? new Int32Array(table) : table;
    }

    var T = signed_crc_table();
    function crc32_bstr(bstr, seed) {
      var C = seed ^ -1, L = bstr.length - 1;
      for(var i = 0; i < L;) {
        C = (C>>>8) ^ T[(C^bstr.charCodeAt(i++))&0xFF];
        C = (C>>>8) ^ T[(C^bstr.charCodeAt(i++))&0xFF];
      }
      if(i === L) C = (C>>>8) ^ T[(C ^ bstr.charCodeAt(i))&0xFF];
      return C ^ -1;
    }

    function crc32_buf(buf, seed) {
      if(buf.length > 10000) return crc32_buf_8(buf, seed);
      var C = seed ^ -1, L = buf.length - 3;
      for(var i = 0; i < L;) {
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
      }
      while(i < L+3) C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
      return C ^ -1;
    }

    function crc32_buf_8(buf, seed) {
      var C = seed ^ -1, L = buf.length - 7;
      for(var i = 0; i < L;) {
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
        C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
      }
      while(i < L+7) C = (C>>>8) ^ T[(C^buf[i++])&0xFF];
      return C ^ -1;
    }

    function crc32_str(str, seed) {
      var C = seed ^ -1;
      for(var i = 0, L=str.length, c, d; i < L;) {
        c = str.charCodeAt(i++);
        if(c < 0x80) {
          C = (C>>>8) ^ T[(C ^ c)&0xFF];
        } else if(c < 0x800) {
          C = (C>>>8) ^ T[(C ^ (192|((c>>6)&31)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|(c&63)))&0xFF];
        } else if(c >= 0xD800 && c < 0xE000) {
          c = (c&1023)+64; d = str.charCodeAt(i++)&1023;
          C = (C>>>8) ^ T[(C ^ (240|((c>>8)&7)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|((c>>2)&63)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|((d>>6)&15)|((c&3)<<4)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|(d&63)))&0xFF];
        } else {
          C = (C>>>8) ^ T[(C ^ (224|((c>>12)&15)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|((c>>6)&63)))&0xFF];
          C = (C>>>8) ^ T[(C ^ (128|(c&63)))&0xFF];
        }
      }
      return C ^ -1;
    }
    CRC32.table = T;
    CRC32.bstr = crc32_bstr;
    CRC32.buf = crc32_buf;
    CRC32.str = crc32_str;
  }));
  /* [MS-CFB] v20171201 */
  var CFB = (function _CFB(){
    var exports = {};
    exports.version = '1.1.0';
    /* [MS-CFB] 2.6.4 */
    function namecmp(l, r) {
      var L = l.split("/"), R = r.split("/");
      for(var i = 0, c = 0, Z = Math.min(L.length, R.length); i < Z; ++i) {
        if((c = L[i].length - R[i].length)) return c;
        if(L[i] != R[i]) return L[i] < R[i] ? -1 : 1;
      }
      return L.length - R.length;
    }
    function dirname(p) {
      if(p.charAt(p.length - 1) == "/") return (p.slice(0,-1).indexOf("/") === -1) ? p : dirname(p.slice(0, -1));
      var c = p.lastIndexOf("/");
      return (c === -1) ? p : p.slice(0, c+1);
    }

    function filename(p) {
      if(p.charAt(p.length - 1) == "/") return filename(p.slice(0, -1));
      var c = p.lastIndexOf("/");
      return (c === -1) ? p : p.slice(c+1);
    }
    /* -------------------------------------------------------------------------- */
    /* DOS Date format:
   high|YYYYYYYm.mmmddddd.HHHHHMMM.MMMSSSSS|low
   add 1980 to stored year
   stored second should be doubled
*/

    /* write JS date to buf as a DOS date */
    function write_dos_date(buf, date) {
      if(typeof date === "string") date = new Date(date);
      var hms = date.getHours();
      hms = hms << 6 | date.getMinutes();
      hms = hms << 5 | (date.getSeconds()>>>1);
      buf.write_shift(2, hms);
      var ymd = (date.getFullYear() - 1980);
      ymd = ymd << 4 | (date.getMonth()+1);
      ymd = ymd << 5 | date.getDate();
      buf.write_shift(2, ymd);
    }

    /* read four bytes from buf and interpret as a DOS date */
    function parse_dos_date(buf) {
      var hms = buf.read_shift(2) & 0xFFFF;
      var ymd = buf.read_shift(2) & 0xFFFF;
      var val = new Date();
      var d = ymd & 0x1F; ymd >>>= 5;
      var m = ymd & 0x0F; ymd >>>= 4;
      val.setMilliseconds(0);
      val.setFullYear(ymd + 1980);
      val.setMonth(m-1);
      val.setDate(d);
      var S = hms & 0x1F; hms >>>= 5;
      var M = hms & 0x3F; hms >>>= 6;
      val.setHours(hms);
      val.setMinutes(M);
      val.setSeconds(S<<1);
      return val;
    }
    function parse_extra_field(blob) {
      prep_blob(blob, 0);
      var o = {};
      var flags = 0;
      while(blob.l <= blob.length - 4) {
        var type = blob.read_shift(2);
        var sz = blob.read_shift(2), tgt = blob.l + sz;
        var p = {};
        switch(type) {
          /* UNIX-style Timestamps */
          case 0x5455: {
            flags = blob.read_shift(1);
            if(flags & 1) p.mtime = blob.read_shift(4);
            /* for some reason, CD flag corresponds to LFH */
            if(sz > 5) {
              if(flags & 2) p.atime = blob.read_shift(4);
              if(flags & 4) p.ctime = blob.read_shift(4);
            }
            if(p.mtime) p.mt = new Date(p.mtime*1000);
          }
            break;
        }
        blob.l = tgt;
        o[type] = p;
      }
      return o;
    }
    var fs;
    // function get_fs() { return fs || (fs = require('fs')); }
    function parse(file, options) {
      if(file[0] == 0x50 && file[1] == 0x4b) return parse_zip(file, options);
      if(file.length < 512) throw new Error("CFB file size " + file.length + " < 512");
      var mver = 3;
      var ssz = 512;
      var nmfs = 0; // number of mini FAT sectors
      var difat_sec_cnt = 0;
      var dir_start = 0;
      var minifat_start = 0;
      var difat_start = 0;

      var fat_addrs = []; // locations of FAT sectors

      /* [MS-CFB] 2.2 Compound File Header */
      var blob = file.slice(0,512);
      prep_blob(blob, 0);

      /* major version */
      var mv = check_get_mver(blob);
      mver = mv[0];
      switch(mver) {
        case 3: ssz = 512; break; case 4: ssz = 4096; break;
        case 0: if(mv[1] == 0) return parse_zip(file, options);
        /* falls through */
        default: throw new Error("Major Version: Expected 3 or 4 saw " + mver);
      }

      /* reprocess header */
      if(ssz !== 512) { blob = file.slice(0,ssz); prep_blob(blob, 28 /* blob.l */); }
      /* Save header for final object */
      var header = file.slice(0,ssz);

      check_shifts(blob, mver);

// Number of Directory Sectors
      var dir_cnt = blob.read_shift(4, 'i');
      if(mver === 3 && dir_cnt !== 0) throw new Error('# Directory Sectors: Expected 0 saw ' + dir_cnt);

// Number of FAT Sectors
      blob.l += 4;

// First Directory Sector Location
      dir_start = blob.read_shift(4, 'i');

// Transaction Signature
      blob.l += 4;

// Mini Stream Cutoff Size
      blob.chk('00100000', 'Mini Stream Cutoff Size: ');

// First Mini FAT Sector Location
      minifat_start = blob.read_shift(4, 'i');

// Number of Mini FAT Sectors
      nmfs = blob.read_shift(4, 'i');

// First DIFAT sector location
      difat_start = blob.read_shift(4, 'i');

// Number of DIFAT Sectors
      difat_sec_cnt = blob.read_shift(4, 'i');

// Grab FAT Sector Locations
      for(var q = -1, j = 0; j < 109; ++j) { /* 109 = (512 - blob.l)>>>2; */
        q = blob.read_shift(4, 'i');
        if(q<0) break;
        fat_addrs[j] = q;
      }

      /** Break the file up into sectors */
      var sectors = sectorify(file, ssz);

      sleuth_fat(difat_start, difat_sec_cnt, sectors, ssz, fat_addrs);

      /** Chains */
      var sector_list = make_sector_list(sectors, dir_start, fat_addrs, ssz);

      sector_list[dir_start].name = "!Directory";
      if(nmfs > 0 && minifat_start !== ENDOFCHAIN) sector_list[minifat_start].name = "!MiniFAT";
      sector_list[fat_addrs[0]].name = "!FAT";
      sector_list.fat_addrs = fat_addrs;
      sector_list.ssz = ssz;

      /* [MS-CFB] 2.6.1 Compound File Directory Entry */
      var files = {}, Paths = [], FileIndex = [], FullPaths = [];
      read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, minifat_start);

      build_full_paths(FileIndex, FullPaths, Paths);
      Paths.shift();

      var o = {
        FileIndex: FileIndex,
        FullPaths: FullPaths
      };

// $FlowIgnore
      if(options && options.raw) o.raw = {header: header, sectors: sectors};
      return o;
    } // parse

    /* [MS-CFB] 2.2 Compound File Header -- read up to major version */
    function check_get_mver(blob) {
      if(blob[blob.l] == 0x50 && blob[blob.l + 1] == 0x4b) return [0, 0];
      // header signature 8
      blob.chk(HEADER_SIGNATURE, 'Header Signature: ');

      // clsid 16
      blob.chk(HEADER_CLSID, 'CLSID: ');

      // minor version 2
      var mver = blob.read_shift(2, 'u');

      return [blob.read_shift(2,'u'), mver];
    }
    function check_shifts(blob, mver) {
      var shift = 0x09;

      // Byte Order
      //blob.chk('feff', 'Byte Order: '); // note: some writers put 0xffff
      blob.l += 2;

      // Sector Shift
      switch((shift = blob.read_shift(2))) {
        case 0x09: if(mver != 3) throw new Error('Sector Shift: Expected 9 saw ' + shift); break;
        case 0x0c: if(mver != 4) throw new Error('Sector Shift: Expected 12 saw ' + shift); break;
        default: throw new Error('Sector Shift: Expected 9 or 12 saw ' + shift);
      }

      // Mini Sector Shift
      blob.chk('0600', 'Mini Sector Shift: ');

      // Reserved
      blob.chk('000000000000', 'Reserved: ');
    }

    /** Break the file up into sectors */
    function sectorify(file, ssz) {
      var nsectors = Math.ceil(file.length/ssz)-1;
      var sectors = [];
      for(var i=1; i < nsectors; ++i) sectors[i-1] = file.slice(i*ssz,(i+1)*ssz);
      sectors[nsectors-1] = file.slice(nsectors*ssz);
      return sectors;
    }

    /* [MS-CFB] 2.6.4 Red-Black Tree */
    function build_full_paths(FI, FP, Paths) {
      var i = 0, L = 0, R = 0, C = 0, j = 0, pl = Paths.length;
      var dad = [], q = [];

      for(; i < pl; ++i) { dad[i]=q[i]=i; FP[i]=Paths[i]; }

      for(; j < q.length; ++j) {
        i = q[j];
        L = FI[i].L; R = FI[i].R; C = FI[i].C;
        if(dad[i] === i) {
          if(L !== -1 /*NOSTREAM*/ && dad[L] !== L) dad[i] = dad[L];
          if(R !== -1 && dad[R] !== R) dad[i] = dad[R];
        }
        if(C !== -1 /*NOSTREAM*/) dad[C] = i;
        if(L !== -1) { dad[L] = dad[i]; if(q.lastIndexOf(L) < j) q.push(L); }
        if(R !== -1) { dad[R] = dad[i]; if(q.lastIndexOf(R) < j) q.push(R); }
      }
      for(i=1; i < pl; ++i) if(dad[i] === i) {
        if(R !== -1 /*NOSTREAM*/ && dad[R] !== R) dad[i] = dad[R];
        else if(L !== -1 && dad[L] !== L) dad[i] = dad[L];
      }

      for(i=1; i < pl; ++i) {
        if(FI[i].type === 0 /* unknown */) continue;
        j = dad[i];
        if(j === 0) FP[i] = FP[0] + "/" + FP[i];
        else while(j !== 0 && j !== dad[j]) {
          FP[i] = FP[j] + "/" + FP[i];
          j = dad[j];
        }
        dad[i] = 0;
      }

      FP[0] += "/";
      for(i=1; i < pl; ++i) {
        if(FI[i].type !== 2 /* stream */) FP[i] += "/";
      }
    }

    function get_mfat_entry(entry, payload, mini) {
      var start = entry.start, size = entry.size;
      //return (payload.slice(start*MSSZ, start*MSSZ + size));
      var o = [];
      var idx = start;
      while(mini && size > 0 && idx >= 0) {
        o.push(payload.slice(idx * MSSZ, idx * MSSZ + MSSZ));
        size -= MSSZ;
        idx = __readInt32LE(mini, idx * 4);
      }
      if(o.length === 0) return (new_buf(0));
      return (bconcat(o).slice(0, entry.size));
    }

    /** Chase down the rest of the DIFAT chain to build a comprehensive list
     DIFAT chains by storing the next sector number as the last 32 bits */
    function sleuth_fat(idx, cnt, sectors, ssz, fat_addrs) {
      var q = ENDOFCHAIN;
      if(idx === ENDOFCHAIN) {
        if(cnt !== 0) throw new Error("DIFAT chain shorter than expected");
      } else if(idx !== -1 /*FREESECT*/) {
        var sector = sectors[idx], m = (ssz>>>2)-1;
        if(!sector) return;
        for(var i = 0; i < m; ++i) {
          if((q = __readInt32LE(sector,i*4)) === ENDOFCHAIN) break;
          fat_addrs.push(q);
        }
        sleuth_fat(__readInt32LE(sector,ssz-4),cnt - 1, sectors, ssz, fat_addrs);
      }
    }

    /** Follow the linked list of sectors for a given starting point */
    function get_sector_list(sectors, start, fat_addrs, ssz, chkd) {
      var buf = [], buf_chain = [];
      if(!chkd) chkd = [];
      var modulus = ssz - 1, j = 0, jj = 0;
      for(j=start; j>=0;) {
        chkd[j] = true;
        buf[buf.length] = j;
        buf_chain.push(sectors[j]);
        var addr = fat_addrs[Math.floor(j*4/ssz)];
        jj = ((j*4) & modulus);
        if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
        if(!sectors[addr]) break;
        j = __readInt32LE(sectors[addr], jj);
      }
      return {nodes: buf, data:__toBuffer([buf_chain])};
    }

    /** Chase down the sector linked lists */
    function make_sector_list(sectors, dir_start, fat_addrs, ssz) {
      var sl = sectors.length, sector_list = ([]);
      var chkd = [], buf = [], buf_chain = [];
      var modulus = ssz - 1, i=0, j=0, k=0, jj=0;
      for(i=0; i < sl; ++i) {
        buf = ([]);
        k = (i + dir_start); if(k >= sl) k-=sl;
        if(chkd[k]) continue;
        buf_chain = [];
        for(j=k; j>=0;) {
          chkd[j] = true;
          buf[buf.length] = j;
          buf_chain.push(sectors[j]);
          var addr = fat_addrs[Math.floor(j*4/ssz)];
          jj = ((j*4) & modulus);
          if(ssz < 4 + jj) throw new Error("FAT boundary crossed: " + j + " 4 "+ssz);
          if(!sectors[addr]) break;
          j = __readInt32LE(sectors[addr], jj);
        }
        sector_list[k] = ({nodes: buf, data:__toBuffer([buf_chain])});
      }
      return sector_list;
    }

    /* [MS-CFB] 2.6.1 Compound File Directory Entry */
    function read_directory(dir_start, sector_list, sectors, Paths, nmfs, files, FileIndex, mini) {
      var minifat_store = 0, pl = (Paths.length?2:0);
      var sector = sector_list[dir_start].data;
      var i = 0, namelen = 0, name;
      for(; i < sector.length; i+= 128) {
        var blob = sector.slice(i, i+128);
        prep_blob(blob, 64);
        namelen = blob.read_shift(2);
        name = __utf16le(blob,0,namelen-pl);
        Paths.push(name);
        var o = ({
          name:  name,
          type:  blob.read_shift(1),
          color: blob.read_shift(1),
          L:     blob.read_shift(4, 'i'),
          R:     blob.read_shift(4, 'i'),
          C:     blob.read_shift(4, 'i'),
          clsid: blob.read_shift(16),
          state: blob.read_shift(4, 'i'),
          start: 0,
          size: 0
        });
        var ctime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
        if(ctime !== 0) o.ct = read_date(blob, blob.l-8);
        var mtime = blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2) + blob.read_shift(2);
        if(mtime !== 0) o.mt = read_date(blob, blob.l-8);
        o.start = blob.read_shift(4, 'i');
        o.size = blob.read_shift(4, 'i');
        if(o.size < 0 && o.start < 0) { o.size = o.type = 0; o.start = ENDOFCHAIN; o.name = ""; }
        if(o.type === 5) { /* root */
          minifat_store = o.start;
          if(nmfs > 0 && minifat_store !== ENDOFCHAIN) sector_list[minifat_store].name = "!StreamData";
          /*minifat_size = o.size;*/
        } else if(o.size >= 4096 /* MSCSZ */) {
          o.storage = 'fat';
          if(sector_list[o.start] === undefined) sector_list[o.start] = get_sector_list(sectors, o.start, sector_list.fat_addrs, sector_list.ssz);
          sector_list[o.start].name = o.name;
          o.content = (sector_list[o.start].data.slice(0,o.size));
        } else {
          o.storage = 'minifat';
          if(o.size < 0) o.size = 0;
          else if(minifat_store !== ENDOFCHAIN && o.start !== ENDOFCHAIN && sector_list[minifat_store]) {
            o.content = get_mfat_entry(o, sector_list[minifat_store].data, (sector_list[mini]||{}).data);
          }
        }
        if(o.content) prep_blob(o.content, 0);
        files[name] = o;
        FileIndex.push(o);
      }
    }

    function read_date(blob, offset) {
      return new Date(( ( (__readUInt32LE(blob,offset+4)/1e7)*Math.pow(2,32)+__readUInt32LE(blob,offset)/1e7 ) - 11644473600)*1000);
    }

    function read_file(filename, options) {
      // get_fs();
      return parse(fs.readFileSync(filename), options);
    }

    function read(blob, options) {
      switch(options && options.type || "base64") {
        case "file": return read_file(blob, options);
        case "base64": return parse(s2a(Base64.decode(blob)), options);
        case "binary": return parse(s2a(blob), options);
      }
      return parse(blob, options);
    }

    function init_cfb(cfb, opts) {
      var o = opts || {}, root = o.root || "Root Entry";
      if(!cfb.FullPaths) cfb.FullPaths = [];
      if(!cfb.FileIndex) cfb.FileIndex = [];
      if(cfb.FullPaths.length !== cfb.FileIndex.length) throw new Error("inconsistent CFB structure");
      if(cfb.FullPaths.length === 0) {
        cfb.FullPaths[0] = root + "/";
        cfb.FileIndex[0] = ({ name: root, type: 5 });
      }
      if(o.CLSID) cfb.FileIndex[0].clsid = o.CLSID;
      seed_cfb(cfb);
    }
    function seed_cfb(cfb) {
      var nm = "\u0001Sh33tJ5";
      if(CFB.find(cfb, "/" + nm)) return;
      var p = new_buf(4); p[0] = 55; p[1] = p[3] = 50; p[2] = 54;
      cfb.FileIndex.push(({ name: nm, type: 2, content:p, size:4, L:69, R:69, C:69 }));
      cfb.FullPaths.push(cfb.FullPaths[0] + nm);
      rebuild_cfb(cfb);
    }
    function rebuild_cfb(cfb, f) {
      init_cfb(cfb);
      var gc = false, s = false;
      for(var i = cfb.FullPaths.length - 1; i >= 0; --i) {
        var _file = cfb.FileIndex[i];
        switch(_file.type) {
          case 0:
            if(s) gc = true;
            else { cfb.FileIndex.pop(); cfb.FullPaths.pop(); }
            break;
          case 1: case 2: case 5:
            s = true;
            if(isNaN(_file.R * _file.L * _file.C)) gc = true;
            if(_file.R > -1 && _file.L > -1 && _file.R == _file.L) gc = true;
            break;
          default: gc = true; break;
        }
      }
      if(!gc && !f) return;

      var now = new Date(1987, 1, 19), j = 0;
      var data = [];
      for(i = 0; i < cfb.FullPaths.length; ++i) {
        if(cfb.FileIndex[i].type === 0) continue;
        data.push([cfb.FullPaths[i], cfb.FileIndex[i]]);
      }
      for(i = 0; i < data.length; ++i) {
        var dad = dirname(data[i][0]);
        s = false;
        for(j = 0; j < data.length; ++j) if(data[j][0] === dad) s = true;
        if(!s) data.push([dad, ({
          name: filename(dad).replace("/",""),
          type: 1,
          clsid: HEADER_CLSID,
          ct: now, mt: now,
          content: null
        })]);
      }

      data.sort(function(x,y) { return namecmp(x[0], y[0]); });
      cfb.FullPaths = []; cfb.FileIndex = [];
      for(i = 0; i < data.length; ++i) { cfb.FullPaths[i] = data[i][0]; cfb.FileIndex[i] = data[i][1]; }
      for(i = 0; i < data.length; ++i) {
        var elt = cfb.FileIndex[i];
        var nm = cfb.FullPaths[i];

        elt.name =  filename(nm).replace("/","");
        elt.L = elt.R = elt.C = -(elt.color = 1);
        elt.size = elt.content ? elt.content.length : 0;
        elt.start = 0;
        elt.clsid = (elt.clsid || HEADER_CLSID);
        if(i === 0) {
          elt.C = data.length > 1 ? 1 : -1;
          elt.size = 0;
          elt.type = 5;
        } else if(nm.slice(-1) == "/") {
          for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==nm) break;
          elt.C = j >= data.length ? -1 : j;
          for(j=i+1;j < data.length; ++j) if(dirname(cfb.FullPaths[j])==dirname(nm)) break;
          elt.R = j >= data.length ? -1 : j;
          elt.type = 1;
        } else {
          if(dirname(cfb.FullPaths[i+1]||"") == dirname(nm)) elt.R = i + 1;
          elt.type = 2;
        }
      }

    }

    function _write(cfb, options) {
      var _opts = options || {};
      rebuild_cfb(cfb);
      if(_opts.fileType == 'zip') return write_zip(cfb, _opts);
      var L = (function(cfb){
        var mini_size = 0, fat_size = 0;
        for(var i = 0; i < cfb.FileIndex.length; ++i) {
          var file = cfb.FileIndex[i];
          if(!file.content) continue;
          var flen = file.content.length;
          if(flen > 0){
            if(flen < 0x1000) mini_size += (flen + 0x3F) >> 6;
            else fat_size += (flen + 0x01FF) >> 9;
          }
        }
        var dir_cnt = (cfb.FullPaths.length +3) >> 2;
        var mini_cnt = (mini_size + 7) >> 3;
        var mfat_cnt = (mini_size + 0x7F) >> 7;
        var fat_base = mini_cnt + fat_size + dir_cnt + mfat_cnt;
        var fat_cnt = (fat_base + 0x7F) >> 7;
        var difat_cnt = fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
        while(((fat_base + fat_cnt + difat_cnt + 0x7F) >> 7) > fat_cnt) difat_cnt = ++fat_cnt <= 109 ? 0 : Math.ceil((fat_cnt-109)/0x7F);
        var L =  [1, difat_cnt, fat_cnt, mfat_cnt, dir_cnt, fat_size, mini_size, 0];
        cfb.FileIndex[0].size = mini_size << 6;
        L[7] = (cfb.FileIndex[0].start=L[0]+L[1]+L[2]+L[3]+L[4]+L[5])+((L[6]+7) >> 3);
        return L;
      })(cfb);
      var o = new_buf(L[7] << 9);
      var i = 0, T = 0;
      {
        for(i = 0; i < 8; ++i) o.write_shift(1, HEADER_SIG[i]);
        for(i = 0; i < 8; ++i) o.write_shift(2, 0);
        o.write_shift(2, 0x003E);
        o.write_shift(2, 0x0003);
        o.write_shift(2, 0xFFFE);
        o.write_shift(2, 0x0009);
        o.write_shift(2, 0x0006);
        for(i = 0; i < 3; ++i) o.write_shift(2, 0);
        o.write_shift(4, 0);
        o.write_shift(4, L[2]);
        o.write_shift(4, L[0] + L[1] + L[2] + L[3] - 1);
        o.write_shift(4, 0);
        o.write_shift(4, 1<<12);
        o.write_shift(4, L[3] ? L[0] + L[1] + L[2] - 1: ENDOFCHAIN);
        o.write_shift(4, L[3]);
        o.write_shift(-4, L[1] ? L[0] - 1: ENDOFCHAIN);
        o.write_shift(4, L[1]);
        for(i = 0; i < 109; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
      }
      if(L[1]) {
        for(T = 0; T < L[1]; ++T) {
          for(; i < 236 + T * 127; ++i) o.write_shift(-4, i < L[2] ? L[1] + i : -1);
          o.write_shift(-4, T === L[1] - 1 ? ENDOFCHAIN : T + 1);
        }
      }
      var chainit = function(w) {
        for(T += w; i<T-1; ++i) o.write_shift(-4, i+1);
        if(w) { ++i; o.write_shift(-4, ENDOFCHAIN); }
      };
      T = i = 0;
      for(T+=L[1]; i<T; ++i) o.write_shift(-4, consts.DIFSECT);
      for(T+=L[2]; i<T; ++i) o.write_shift(-4, consts.FATSECT);
      chainit(L[3]);
      chainit(L[4]);
      var j = 0, flen = 0;
      var file = cfb.FileIndex[0];
      for(; j < cfb.FileIndex.length; ++j) {
        file = cfb.FileIndex[j];
        if(!file.content) continue;
        flen = file.content.length;
        if(flen < 0x1000) continue;
        file.start = T;
        chainit((flen + 0x01FF) >> 9);
      }
      chainit((L[6] + 7) >> 3);
      while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
      T = i = 0;
      for(j = 0; j < cfb.FileIndex.length; ++j) {
        file = cfb.FileIndex[j];
        if(!file.content) continue;
        flen = file.content.length;
        if(!flen || flen >= 0x1000) continue;
        file.start = T;
        chainit((flen + 0x3F) >> 6);
      }
      while(o.l & 0x1FF) o.write_shift(-4, consts.ENDOFCHAIN);
      for(i = 0; i < L[4]<<2; ++i) {
        var nm = cfb.FullPaths[i];
        if(!nm || nm.length === 0) {
          for(j = 0; j < 17; ++j) o.write_shift(4, 0);
          for(j = 0; j < 3; ++j) o.write_shift(4, -1);
          for(j = 0; j < 12; ++j) o.write_shift(4, 0);
          continue;
        }
        file = cfb.FileIndex[i];
        if(i === 0) file.start = file.size ? file.start - 1 : ENDOFCHAIN;
        var _nm = (i === 0 && _opts.root) || file.name;
        flen = 2*(_nm.length+1);
        o.write_shift(64, _nm, "utf16le");
        o.write_shift(2, flen);
        o.write_shift(1, file.type);
        o.write_shift(1, file.color);
        o.write_shift(-4, file.L);
        o.write_shift(-4, file.R);
        o.write_shift(-4, file.C);
        if(!file.clsid) for(j = 0; j < 4; ++j) o.write_shift(4, 0);
        else o.write_shift(16, file.clsid, "hex");
        o.write_shift(4, file.state || 0);
        o.write_shift(4, 0); o.write_shift(4, 0);
        o.write_shift(4, 0); o.write_shift(4, 0);
        o.write_shift(4, file.start);
        o.write_shift(4, file.size); o.write_shift(4, 0);
      }
      for(i = 1; i < cfb.FileIndex.length; ++i) {
        file = cfb.FileIndex[i];
        if(file.size >= 0x1000) {
          o.l = (file.start+1) << 9;
          for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
          for(; j & 0x1FF; ++j) o.write_shift(1, 0);
        }
      }
      for(i = 1; i < cfb.FileIndex.length; ++i) {
        file = cfb.FileIndex[i];
        if(file.size > 0 && file.size < 0x1000) {
          for(j = 0; j < file.size; ++j) o.write_shift(1, file.content[j]);
          for(; j & 0x3F; ++j) o.write_shift(1, 0);
        }
      }
      while(o.l < o.length) o.write_shift(1, 0);
      return o;
    }
    /* [MS-CFB] 2.6.4 (Unicode 3.0.1 case conversion) */
    function find(cfb, path) {
      var UCFullPaths = cfb.FullPaths.map(function(x) { return x.toUpperCase(); });
      var UCPaths = UCFullPaths.map(function(x) { var y = x.split("/"); return y[y.length - (x.slice(-1) == "/" ? 2 : 1)]; });
      var k = false;
      if(path.charCodeAt(0) === 47 /* "/" */) { k = true; path = UCFullPaths[0].slice(0, -1) + path; }
      else k = path.indexOf("/") !== -1;
      var UCPath = path.toUpperCase();
      var w = k === true ? UCFullPaths.indexOf(UCPath) : UCPaths.indexOf(UCPath);
      if(w !== -1) return cfb.FileIndex[w];

      var m = !UCPath.match(chr1);
      UCPath = UCPath.replace(chr0,'');
      if(m) UCPath = UCPath.replace(chr1,'!');
      for(w = 0; w < UCFullPaths.length; ++w) {
        if((m ? UCFullPaths[w].replace(chr1,'!') : UCFullPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
        if((m ? UCPaths[w].replace(chr1,'!') : UCPaths[w]).replace(chr0,'') == UCPath) return cfb.FileIndex[w];
      }
      return null;
    }
    /** CFB Constants */
    var MSSZ = 64; /* Mini Sector Size = 1<<6 */
//var MSCSZ = 4096; /* Mini Stream Cutoff Size */
    /* 2.1 Compound File Sector Numbers and Types */
    var ENDOFCHAIN = -2;
    /* 2.2 Compound File Header */
    var HEADER_SIGNATURE = 'd0cf11e0a1b11ae1';
    var HEADER_SIG = [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1];
    var HEADER_CLSID = '00000000000000000000000000000000';
    var consts = {
      /* 2.1 Compund File Sector Numbers and Types */
      MAXREGSECT: -6,
      DIFSECT: -4,
      FATSECT: -3,
      ENDOFCHAIN: ENDOFCHAIN,
      FREESECT: -1,
      /* 2.2 Compound File Header */
      HEADER_SIGNATURE: HEADER_SIGNATURE,
      HEADER_MINOR_VERSION: '3e00',
      MAXREGSID: -6,
      NOSTREAM: -1,
      HEADER_CLSID: HEADER_CLSID,
      /* 2.6.1 Compound File Directory Entry */
      EntryTypes: ['unknown','storage','stream','lockbytes','property','root']
    };

    function write_file(cfb, filename, options) {
      // get_fs();
      var o = _write(cfb, options);
      fs.writeFileSync(filename, o);
    }

    function a2s(o) {
      var out = new Array(o.length);
      for(var i = 0; i < o.length; ++i) out[i] = String.fromCharCode(o[i]);
      return out.join("");
    }

    function write(cfb, options) {
      var o = _write(cfb, options);
      switch(options && options.type) {
        case "file": /*get_fs();*/ fs.writeFileSync(options.filename, (o)); return o;
        case "binary": return a2s(o);
        case "base64": return Base64.encode(a2s(o));
      }
      return o;
    }
    /* node < 8.1 zlib does not expose bytesRead, so default to pure JS */
    var _zlib;
    function use_zlib(zlib) { try {
      var InflateRaw = zlib.InflateRaw;
      var InflRaw = new InflateRaw();
      InflRaw._processChunk(new Uint8Array([3, 0]), InflRaw._finishFlushFlag);
      if(InflRaw.bytesRead) _zlib = zlib;
      else throw new Error("zlib does not expose bytesRead");
    } catch(e) {console.error("cannot use native zlib: " + (e.message || e)); } }

    function _inflateRawSync(payload, usz) {
      if(!_zlib) return _inflate(payload, usz);
      var InflateRaw = _zlib.InflateRaw;
      var InflRaw = new InflateRaw();
      var out = InflRaw._processChunk(payload.slice(payload.l), InflRaw._finishFlushFlag);
      payload.l += InflRaw.bytesRead;
      return out;
    }

    function _deflateRawSync(payload) {
      return _zlib ? _zlib.deflateRawSync(payload) : _deflate(payload);
    }
    var CLEN_ORDER = [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ];

    /*  LEN_ID = [ 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285 ]; */
    var LEN_LN = [   3,   4,   5,   6,   7,   8,   9,  10,  11,  13 , 15,  17,  19,  23,  27,  31,  35,  43,  51,  59,  67,  83,  99, 115, 131, 163, 195, 227, 258 ];

    /*  DST_ID = [  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13,  14,  15,  16,  17,  18,  19,   20,   21,   22,   23,   24,   25,   26,    27,    28,    29 ]; */
    var DST_LN = [  1,  2,  3,  4,  5,  7,  9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577 ];

    function bit_swap_8(n) { var t = (((((n<<1)|(n<<11)) & 0x22110) | (((n<<5)|(n<<15)) & 0x88440))); return ((t>>16) | (t>>8) |t)&0xFF; }

    var use_typed_arrays = typeof Uint8Array !== 'undefined';

    var bitswap8 = use_typed_arrays ? new Uint8Array(1<<8) : [];
    for(var q = 0; q < (1<<8); ++q) bitswap8[q] = bit_swap_8(q);

    function bit_swap_n(n, b) {
      var rev = bitswap8[n & 0xFF];
      if(b <= 8) return rev >>> (8-b);
      rev = (rev << 8) | bitswap8[(n>>8)&0xFF];
      if(b <= 16) return rev >>> (16-b);
      rev = (rev << 8) | bitswap8[(n>>16)&0xFF];
      return rev >>> (24-b);
    }

    /* helpers for unaligned bit reads */
    function read_bits_2(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 6 ? 0 : buf[h+1]<<8))>>>w)& 0x03; }
    function read_bits_3(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 5 ? 0 : buf[h+1]<<8))>>>w)& 0x07; }
    function read_bits_4(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 4 ? 0 : buf[h+1]<<8))>>>w)& 0x0F; }
    function read_bits_5(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 3 ? 0 : buf[h+1]<<8))>>>w)& 0x1F; }
    function read_bits_7(buf, bl) { var w = (bl&7), h = (bl>>>3); return ((buf[h]|(w <= 1 ? 0 : buf[h+1]<<8))>>>w)& 0x7F; }

    /* works up to n = 3 * 8 + 1 = 25 */
    function read_bits_n(buf, bl, n) {
      var w = (bl&7), h = (bl>>>3), f = ((1<<n)-1);
      var v = buf[h] >>> w;
      if(n < 8 - w) return v & f;
      v |= buf[h+1]<<(8-w);
      if(n < 16 - w) return v & f;
      v |= buf[h+2]<<(16-w);
      if(n < 24 - w) return v & f;
      v |= buf[h+3]<<(24-w);
      return v & f;
    }

    /* until ArrayBuffer#realloc is a thing, fake a realloc */
    function realloc(b, sz) {
      var L = b.length, M = 2*L > sz ? 2*L : sz + 5, i = 0;
      if(L >= sz) return b;
      if(has_buf) {
        var o = new_unsafe_buf(M);
        // $FlowIgnore
        if(b.copy) b.copy(o);
        else for(; i < b.length; ++i) o[i] = b[i];
        return o;
      } else if(use_typed_arrays) {
        var a = new Uint8Array(M);
        if(a.set) a.set(b);
        else for(; i < b.length; ++i) a[i] = b[i];
        return a;
      }
      b.length = M;
      return b;
    }

    /* zero-filled arrays for older browsers */
    function zero_fill_array(n) {
      var o = new Array(n);
      for(var i = 0; i < n; ++i) o[i] = 0;
      return o;
    }var _deflate = (function() {
      var _deflateRaw = (function() {
        return function deflateRaw(data, out) {
          var boff = 0;
          while(boff < data.length) {
            var L = Math.min(0xFFFF, data.length - boff);
            var h = boff + L == data.length;
            /* TODO: this is only type 0 stored */
            out.write_shift(1, +h);
            out.write_shift(2, L);
            out.write_shift(2, (~L) & 0xFFFF);
            while(L-- > 0) out[out.l++] = data[boff++];
          }
          return out.l;
        };
      })();

      return function(data) {
        var buf = new_buf(50+Math.floor(data.length*1.1));
        var off = _deflateRaw(data, buf);
        return buf.slice(0, off);
      };
    })();
    /* modified inflate function also moves original read head */

    /* build tree (used for literals and lengths) */
    function build_tree(clens, cmap, MAX) {
      var maxlen = 1, w = 0, i = 0, j = 0, ccode = 0, L = clens.length;

      var bl_count  = use_typed_arrays ? new Uint16Array(32) : zero_fill_array(32);
      for(i = 0; i < 32; ++i) bl_count[i] = 0;

      for(i = L; i < MAX; ++i) clens[i] = 0;
      L = clens.length;

      var ctree = use_typed_arrays ? new Uint16Array(L) : zero_fill_array(L); // []

      /* build code tree */
      for(i = 0; i < L; ++i) {
        bl_count[(w = clens[i])]++;
        if(maxlen < w) maxlen = w;
        ctree[i] = 0;
      }
      bl_count[0] = 0;
      for(i = 1; i <= maxlen; ++i) bl_count[i+16] = (ccode = (ccode + bl_count[i-1])<<1);
      for(i = 0; i < L; ++i) {
        ccode = clens[i];
        if(ccode != 0) ctree[i] = bl_count[ccode+16]++;
      }

      /* cmap[maxlen + 4 bits] = (off&15) + (lit<<4) reverse mapping */
      var cleni = 0;
      for(i = 0; i < L; ++i) {
        cleni = clens[i];
        if(cleni != 0) {
          ccode = bit_swap_n(ctree[i], maxlen)>>(maxlen-cleni);
          for(j = (1<<(maxlen + 4 - cleni)) - 1; j>=0; --j)
            cmap[ccode|(j<<cleni)] = (cleni&15) | (i<<4);
        }
      }
      return maxlen;
    }

    var fix_lmap = use_typed_arrays ? new Uint16Array(512) : zero_fill_array(512);
    var fix_dmap = use_typed_arrays ? new Uint16Array(32)  : zero_fill_array(32);
    if(!use_typed_arrays) {
      for(var i = 0; i < 512; ++i) fix_lmap[i] = 0;
      for(i = 0; i < 32; ++i) fix_dmap[i] = 0;
    }
    (function() {
      var dlens = [];
      var i = 0;
      for(;i<32; i++) dlens.push(5);
      build_tree(dlens, fix_dmap, 32);

      var clens = [];
      i = 0;
      for(; i<=143; i++) clens.push(8);
      for(; i<=255; i++) clens.push(9);
      for(; i<=279; i++) clens.push(7);
      for(; i<=287; i++) clens.push(8);
      build_tree(clens, fix_lmap, 288);
    })();

    var dyn_lmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
    var dyn_dmap = use_typed_arrays ? new Uint16Array(32768) : zero_fill_array(32768);
    var dyn_cmap = use_typed_arrays ? new Uint16Array(128)   : zero_fill_array(128);
    var dyn_len_1 = 1, dyn_len_2 = 1;

    /* 5.5.3 Expanding Huffman Codes */
    function dyn(data, boff) {
      /* nomenclature from RFC1951 refers to bit values; these are offset by the implicit constant */
      var _HLIT = read_bits_5(data, boff) + 257; boff += 5;
      var _HDIST = read_bits_5(data, boff) + 1; boff += 5;
      var _HCLEN = read_bits_4(data, boff) + 4; boff += 4;
      var w = 0;

      /* grab and store code lengths */
      var clens = use_typed_arrays ? new Uint8Array(19) : zero_fill_array(19);
      var ctree = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ];
      var maxlen = 1;
      var bl_count =  use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
      var next_code = use_typed_arrays ? new Uint8Array(8) : zero_fill_array(8);
      var L = clens.length; /* 19 */
      for(var i = 0; i < _HCLEN; ++i) {
        clens[CLEN_ORDER[i]] = w = read_bits_3(data, boff);
        if(maxlen < w) maxlen = w;
        bl_count[w]++;
        boff += 3;
      }

      /* build code tree */
      var ccode = 0;
      bl_count[0] = 0;
      for(i = 1; i <= maxlen; ++i) next_code[i] = ccode = (ccode + bl_count[i-1])<<1;
      for(i = 0; i < L; ++i) if((ccode = clens[i]) != 0) ctree[i] = next_code[ccode]++;
      /* cmap[7 bits from stream] = (off&7) + (lit<<3) */
      var cleni = 0;
      for(i = 0; i < L; ++i) {
        cleni = clens[i];
        if(cleni != 0) {
          ccode = bitswap8[ctree[i]]>>(8-cleni);
          for(var j = (1<<(7-cleni))-1; j>=0; --j) dyn_cmap[ccode|(j<<cleni)] = (cleni&7) | (i<<3);
        }
      }

      /* read literal and dist codes at once */
      var hcodes = [];
      maxlen = 1;
      for(; hcodes.length < _HLIT + _HDIST;) {
        ccode = dyn_cmap[read_bits_7(data, boff)];
        boff += ccode & 7;
        switch((ccode >>>= 3)) {
          case 16:
            w = 3 + read_bits_2(data, boff); boff += 2;
            ccode = hcodes[hcodes.length - 1];
            while(w-- > 0) hcodes.push(ccode);
            break;
          case 17:
            w = 3 + read_bits_3(data, boff); boff += 3;
            while(w-- > 0) hcodes.push(0);
            break;
          case 18:
            w = 11 + read_bits_7(data, boff); boff += 7;
            while(w -- > 0) hcodes.push(0);
            break;
          default:
            hcodes.push(ccode);
            if(maxlen < ccode) maxlen = ccode;
            break;
        }
      }

      /* build literal / length trees */
      var h1 = hcodes.slice(0, _HLIT), h2 = hcodes.slice(_HLIT);
      for(i = _HLIT; i < 286; ++i) h1[i] = 0;
      for(i = _HDIST; i < 30; ++i) h2[i] = 0;
      dyn_len_1 = build_tree(h1, dyn_lmap, 286);
      dyn_len_2 = build_tree(h2, dyn_dmap, 30);
      return boff;
    }

    /* return [ data, bytesRead ] */
    function inflate(data, usz) {
      /* shortcircuit for empty buffer [0x03, 0x00] */
      if(data[0] == 3 && !(data[1] & 0x3)) { return [new_raw_buf(usz), 2]; }

      /* bit offset */
      var boff = 0;

      /* header includes final bit and type bits */
      var header = 0;

      var outbuf = new_unsafe_buf(usz ? usz : (1<<18));
      var woff = 0;
      var OL = outbuf.length>>>0;
      var max_len_1 = 0, max_len_2 = 0;

      while((header&1) == 0) {
        header = read_bits_3(data, boff); boff += 3;
        if((header >>> 1) == 0) {
          /* Stored block */
          if(boff & 7) boff += 8 - (boff&7);
          /* 2 bytes sz, 2 bytes bit inverse */
          var sz = data[boff>>>3] | data[(boff>>>3)+1]<<8;
          boff += 32;
          /* push sz bytes */
          if(!usz && OL < woff + sz) { outbuf = realloc(outbuf, woff + sz); OL = outbuf.length; }
          if(typeof data.copy === 'function') {
            // $FlowIgnore
            data.copy(outbuf, woff, boff>>>3, (boff>>>3)+sz);
            woff += sz; boff += 8*sz;
          } else while(sz-- > 0) { outbuf[woff++] = data[boff>>>3]; boff += 8; }
          continue;
        } else if((header >>> 1) == 1) {
          /* Fixed Huffman */
          max_len_1 = 9; max_len_2 = 5;
        } else {
          /* Dynamic Huffman */
          boff = dyn(data, boff);
          max_len_1 = dyn_len_1; max_len_2 = dyn_len_2;
        }
        if(!usz && (OL < woff + 32767)) { outbuf = realloc(outbuf, woff + 32767); OL = outbuf.length; }
        for(;;) { // while(true) is apparently out of vogue in modern JS circles
          /* ingest code and move read head */
          var bits = read_bits_n(data, boff, max_len_1);
          var code = (header>>>1) == 1 ? fix_lmap[bits] : dyn_lmap[bits];
          boff += code & 15; code >>>= 4;
          /* 0-255 are literals, 256 is end of block token, 257+ are copy tokens */
          if(((code>>>8)&0xFF) === 0) outbuf[woff++] = code;
          else if(code == 256) break;
          else {
            code -= 257;
            var len_eb = (code < 8) ? 0 : ((code-4)>>2); if(len_eb > 5) len_eb = 0;
            var tgt = woff + LEN_LN[code];
            /* length extra bits */
            if(len_eb > 0) {
              tgt += read_bits_n(data, boff, len_eb);
              boff += len_eb;
            }

            /* dist code */
            bits = read_bits_n(data, boff, max_len_2);
            code = (header>>>1) == 1 ? fix_dmap[bits] : dyn_dmap[bits];
            boff += code & 15; code >>>= 4;
            var dst_eb = (code < 4 ? 0 : (code-2)>>1);
            var dst = DST_LN[code];
            /* dist extra bits */
            if(dst_eb > 0) {
              dst += read_bits_n(data, boff, dst_eb);
              boff += dst_eb;
            }

            /* in the common case, manual byte copy is faster than TA set / Buffer copy */
            if(!usz && OL < tgt) { outbuf = realloc(outbuf, tgt); OL = outbuf.length; }
            while(woff < tgt) { outbuf[woff] = outbuf[woff - dst]; ++woff; }
          }
        }
      }
      return [usz ? outbuf : outbuf.slice(0, woff), (boff+7)>>>3];
    }

    function _inflate(payload, usz) {
      var data = payload.slice(payload.l||0);
      var out = inflate(data, usz);
      payload.l += out[1];
      return out[0];
    }

    function warn_or_throw(wrn, msg) {
      if(wrn) { if(typeof console !== 'undefined') console.error(msg); }
      else throw new Error(msg);
    }

    function parse_zip(file, options) {
      var blob = file;
      prep_blob(blob, 0);

      var FileIndex = [], FullPaths = [];
      var o = {
        FileIndex: FileIndex,
        FullPaths: FullPaths
      };
      init_cfb(o, { root: options.root });

      /* find end of central directory, start just after signature */
      var i = blob.length - 4;
      while((blob[i] != 0x50 || blob[i+1] != 0x4b || blob[i+2] != 0x05 || blob[i+3] != 0x06) && i >= 0) --i;
      blob.l = i + 4;

      /* parse end of central directory */
      blob.l += 4;
      var fcnt = blob.read_shift(2);
      blob.l += 6;
      var start_cd = blob.read_shift(4);

      /* parse central directory */
      blob.l = start_cd;

      for(i = 0; i < fcnt; ++i) {
        /* trust local file header instead of CD entry */
        blob.l += 20;
        var csz = blob.read_shift(4);
        var usz = blob.read_shift(4);
        var namelen = blob.read_shift(2);
        var efsz = blob.read_shift(2);
        var fcsz = blob.read_shift(2);
        blob.l += 8;
        var offset = blob.read_shift(4);
        var EF = parse_extra_field(blob.slice(blob.l+namelen, blob.l+namelen+efsz));
        blob.l += namelen + efsz + fcsz;

        var L = blob.l;
        blob.l = offset + 4;
        parse_local_file(blob, csz, usz, o, EF);
        blob.l = L;
      }

      return o;
    }


    /* head starts just after local file header signature */
    function parse_local_file(blob, csz, usz, o, EF) {
      /* [local file header] */
      blob.l += 2;
      var flags = blob.read_shift(2);
      var meth = blob.read_shift(2);
      var date = parse_dos_date(blob);

      if(flags & 0x2041) throw new Error("Unsupported ZIP encryption");
      var crc32 = blob.read_shift(4);
      var _csz = blob.read_shift(4);
      var _usz = blob.read_shift(4);

      var namelen = blob.read_shift(2);
      var efsz = blob.read_shift(2);

      // TODO: flags & (1<<11) // UTF8
      var name = ""; for(var i = 0; i < namelen; ++i) name += String.fromCharCode(blob[blob.l++]);
      if(efsz) {
        var ef = parse_extra_field(blob.slice(blob.l, blob.l + efsz));
        if((ef[0x5455]||{}).mt) date = ef[0x5455].mt;
        if(((EF||{})[0x5455]||{}).mt) date = EF[0x5455].mt;
      }
      blob.l += efsz;

      /* [encryption header] */

      /* [file data] */
      var data = blob.slice(blob.l, blob.l + _csz);
      switch(meth) {
        case 8: data = _inflateRawSync(blob, _usz); break;
        case 0: break;
        default: throw new Error("Unsupported ZIP Compression method " + meth);
      }

      /* [data descriptor] */
      var wrn = false;
      if(flags & 8) {
        crc32 = blob.read_shift(4);
        if(crc32 == 0x08074b50) { crc32 = blob.read_shift(4); wrn = true; }
        _csz = blob.read_shift(4);
        _usz = blob.read_shift(4);
      }

      if(_csz != csz) warn_or_throw(wrn, "Bad compressed size: " + csz + " != " + _csz);
      if(_usz != usz) warn_or_throw(wrn, "Bad uncompressed size: " + usz + " != " + _usz);
      var _crc32 = CRC32.buf(data, 0);
      if(crc32 != _crc32) warn_or_throw(wrn, "Bad CRC32 checksum: " + crc32 + " != " + _crc32);
      cfb_add(o, name, data, {unsafe: true, mt: date});
    }
    function write_zip(cfb, options) {
      var _opts = options || {};
      var out = [], cdirs = [];
      var o = new_buf(1);
      var method = (_opts.compression ? 8 : 0), flags = 0;
      var desc = false;
      if(desc) flags |= 8;
      var i = 0, j = 0;

      var start_cd = 0, fcnt = 0;
      var root = cfb.FullPaths[0], fp = root, fi = cfb.FileIndex[0];
      var crcs = [];
      var sz_cd = 0;

      for(i = 1; i < cfb.FullPaths.length; ++i) {
        fp = cfb.FullPaths[i].slice(root.length); fi = cfb.FileIndex[i];
        if(!fi.size || !fi.content || fp == "\u0001Sh33tJ5") continue;
        var start = start_cd;

        /* TODO: CP437 filename */
        var namebuf = new_buf(fp.length);
        for(j = 0; j < fp.length; ++j) namebuf.write_shift(1, fp.charCodeAt(j) & 0x7F);
        namebuf = namebuf.slice(0, namebuf.l);
        crcs[fcnt] = CRC32.buf(fi.content, 0);

        var outbuf = fi.content;
        if(method == 8) outbuf = _deflateRawSync(outbuf);

        /* local file header */
        o = new_buf(30);
        o.write_shift(4, 0x04034b50);
        o.write_shift(2, 20);
        o.write_shift(2, flags);
        o.write_shift(2, method);
        /* TODO: last mod file time/date */
        if(fi.mt) write_dos_date(o, fi.mt);
        else o.write_shift(4, 0);
        o.write_shift(-4, (flags & 8) ? 0 : crcs[fcnt]);
        o.write_shift(4,  (flags & 8) ? 0 : outbuf.length);
        o.write_shift(4,  (flags & 8) ? 0 : fi.content.length);
        o.write_shift(2, namebuf.length);
        o.write_shift(2, 0);

        start_cd += o.length;
        out.push(o);
        start_cd += namebuf.length;
        out.push(namebuf);

        /* TODO: encryption header ? */
        start_cd += outbuf.length;
        out.push(outbuf);

        /* data descriptor */
        if(flags & 8) {
          o = new_buf(12);
          o.write_shift(-4, crcs[fcnt]);
          o.write_shift(4, outbuf.length);
          o.write_shift(4, fi.content.length);
          start_cd += o.l;
          out.push(o);
        }

        /* central directory */
        o = new_buf(46);
        o.write_shift(4, 0x02014b50);
        o.write_shift(2, 0);
        o.write_shift(2, 20);
        o.write_shift(2, flags);
        o.write_shift(2, method);
        o.write_shift(4, 0); /* TODO: last mod file time/date */
        o.write_shift(-4, crcs[fcnt]);

        o.write_shift(4, outbuf.length);
        o.write_shift(4, fi.content.length);
        o.write_shift(2, namebuf.length);
        o.write_shift(2, 0);
        o.write_shift(2, 0);
        o.write_shift(2, 0);
        o.write_shift(2, 0);
        o.write_shift(4, 0);
        o.write_shift(4, start);

        sz_cd += o.l;
        cdirs.push(o);
        sz_cd += namebuf.length;
        cdirs.push(namebuf);
        ++fcnt;
      }

      /* end of central directory */
      o = new_buf(22);
      o.write_shift(4, 0x06054b50);
      o.write_shift(2, 0);
      o.write_shift(2, 0);
      o.write_shift(2, fcnt);
      o.write_shift(2, fcnt);
      o.write_shift(4, sz_cd);
      o.write_shift(4, start_cd);
      o.write_shift(2, 0);

      return bconcat(([bconcat((out)), bconcat(cdirs), o]));
    }
    function cfb_new(opts) {
      var o = ({});
      init_cfb(o, opts);
      return o;
    }

    function cfb_add(cfb, name, content, opts) {
      var unsafe = opts && opts.unsafe;
      if(!unsafe) init_cfb(cfb);
      var file = !unsafe && CFB.find(cfb, name);
      if(!file) {
        var fpath = cfb.FullPaths[0];
        if(name.slice(0, fpath.length) == fpath) fpath = name;
        else {
          if(fpath.slice(-1) != "/") fpath += "/";
          fpath = (fpath + name).replace("//","/");
        }
        file = ({name: filename(name), type: 2});
        cfb.FileIndex.push(file);
        cfb.FullPaths.push(fpath);
        if(!unsafe) CFB.utils.cfb_gc(cfb);
      }
      file.content = (content);
      file.size = content ? content.length : 0;
      if(opts) {
        if(opts.CLSID) file.clsid = opts.CLSID;
        if(opts.mt) file.mt = opts.mt;
        if(opts.ct) file.ct = opts.ct;
      }
      return file;
    }

    function cfb_del(cfb, name) {
      init_cfb(cfb);
      var file = CFB.find(cfb, name);
      if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
        cfb.FileIndex.splice(j, 1);
        cfb.FullPaths.splice(j, 1);
        return true;
      }
      return false;
    }

    function cfb_mov(cfb, old_name, new_name) {
      init_cfb(cfb);
      var file = CFB.find(cfb, old_name);
      if(file) for(var j = 0; j < cfb.FileIndex.length; ++j) if(cfb.FileIndex[j] == file) {
        cfb.FileIndex[j].name = filename(new_name);
        cfb.FullPaths[j] = new_name;
        return true;
      }
      return false;
    }

    function cfb_gc(cfb) { rebuild_cfb(cfb, true); }

    exports.find = find;
    exports.read = read;
    exports.parse = parse;
    exports.write = write;
    exports.writeFile = write_file;
    exports.utils = {
      cfb_new: cfb_new,
      cfb_add: cfb_add,
      cfb_del: cfb_del,
      cfb_mov: cfb_mov,
      cfb_gc: cfb_gc,
      ReadShift: ReadShift,
      CheckField: CheckField,
      prep_blob: prep_blob,
      bconcat: bconcat,
      use_zlib: use_zlib,
      _deflateRaw: _deflate,
      _inflateRaw: _inflate,
      consts: consts
    };

    return exports;
  })();

  if(typeof require !== 'undefined' && typeof module !== 'undefined' && typeof DO_NOT_EXPORT_CFB === 'undefined') { module.exports = CFB; }
  var _fs;
  if(typeof require !== 'undefined') try { _fs = require('fs'); } catch(e) {}

  /* normalize data for blob ctor */
  function blobify(data) {
    if(typeof data === "string") return s2ab(data);
    if(Array.isArray(data)) return a2u(data);
    return data;
  }
  /* write or download file */
  function write_dl(fname, payload, enc) {
    /*global IE_SaveFile, Blob, navigator, saveAs, URL, document, File, chrome */
    if(typeof _fs !== 'undefined' && _fs.writeFileSync) return enc ? _fs.writeFileSync(fname, payload, enc) : _fs.writeFileSync(fname, payload);
    var data = (enc == "utf8") ? utf8write(payload) : payload;
    if(typeof IE_SaveFile !== 'undefined') return IE_SaveFile(data, fname);
    if(typeof Blob !== 'undefined') {
      var blob = new Blob([blobify(data)], {type:"application/octet-stream"});
      if(typeof navigator !== 'undefined' && navigator.msSaveBlob) return navigator.msSaveBlob(blob, fname);
      if(typeof saveAs !== 'undefined') return saveAs(blob, fname);
      if(typeof URL !== 'undefined' && typeof document !== 'undefined' && document.createElement && URL.createObjectURL) {
        var url = URL.createObjectURL(blob);
        if(typeof chrome === 'object' && typeof (chrome.downloads||{}).download == "function") {
          if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
          return chrome.downloads.download({ url: url, filename: fname, saveAs: true});
        }
        var a = document.createElement("a");
        if(a.download != null) {
          a.download = fname; a.href = url; document.body.appendChild(a); a.click();
          document.body.removeChild(a);
          if(URL.revokeObjectURL && typeof setTimeout !== 'undefined') setTimeout(function() { URL.revokeObjectURL(url); }, 60000);
          return url;
        }
      }
    }
    // $FlowIgnore
    if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
      // $FlowIgnore
      var out = File(fname); out.open("w"); out.encoding = "binary";
      if(Array.isArray(payload)) payload = a2s(payload);
      out.write(payload); out.close(); return payload;
    } catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
    throw new Error("cannot save file " + fname);
  }

  /* read binary data from file */
  function read_binary(path) {
    if(typeof _fs !== 'undefined') return _fs.readFileSync(path);
    // $FlowIgnore
    if(typeof $ !== 'undefined' && typeof File !== 'undefined' && typeof Folder !== 'undefined') try { // extendscript
      // $FlowIgnore
      var infile = File(path); infile.open("r"); infile.encoding = "binary";
      var data = infile.read(); infile.close();
      return data;
    } catch(e) { if(!e.message || !e.message.match(/onstruct/)) throw e; }
    throw new Error("Cannot access file " + path);
  }
  function keys(o) {
    var ks = Object.keys(o), o2 = [];
    for(var i = 0; i < ks.length; ++i) if(o.hasOwnProperty(ks[i])) o2.push(ks[i]);
    return o2;
  }

  function evert_key(obj, key) {
    var o = ([]), K = keys(obj);
    for(var i = 0; i !== K.length; ++i) if(o[obj[K[i]][key]] == null) o[obj[K[i]][key]] = K[i];
    return o;
  }

  function evert(obj) {
    var o = ([]), K = keys(obj);
    for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = K[i];
    return o;
  }

  function evert_num(obj) {
    var o = ([]), K = keys(obj);
    for(var i = 0; i !== K.length; ++i) o[obj[K[i]]] = parseInt(K[i],10);
    return o;
  }

  function evert_arr(obj) {
    var o = ([]), K = keys(obj);
    for(var i = 0; i !== K.length; ++i) {
      if(o[obj[K[i]]] == null) o[obj[K[i]]] = [];
      o[obj[K[i]]].push(K[i]);
    }
    return o;
  }

  var basedate = new Date(1899, 11, 30, 0, 0, 0); // 2209161600000
  var dnthresh = basedate.getTime() + (new Date().getTimezoneOffset() - basedate.getTimezoneOffset()) * 60000;
  function datenum(v, date1904) {
    var epoch = v.getTime();
    if(date1904) epoch -= 1462*24*60*60*1000;
    return (epoch - dnthresh) / (24 * 60 * 60 * 1000);
  }
  function numdate(v) {
    var out = new Date();
    out.setTime(v * 24 * 60 * 60 * 1000 + dnthresh);
    return out;
  }

  /* ISO 8601 Duration */
  function parse_isodur(s) {
    var sec = 0, mt = 0, time = false;
    var m = s.match(/P([0-9\.]+Y)?([0-9\.]+M)?([0-9\.]+D)?T([0-9\.]+H)?([0-9\.]+M)?([0-9\.]+S)?/);
    if(!m) throw new Error("|" + s + "| is not an ISO8601 Duration");
    for(var i = 1; i != m.length; ++i) {
      if(!m[i]) continue;
      mt = 1;
      if(i > 3) time = true;
      switch(m[i].slice(m[i].length-1)) {
        case 'Y':
          throw new Error("Unsupported ISO Duration Field: " + m[i].slice(m[i].length-1));
        case 'D': mt *= 24;
        /* falls through */
        case 'H': mt *= 60;
        /* falls through */
        case 'M':
          if(!time) throw new Error("Unsupported ISO Duration Field: M");
          else mt *= 60;
        /* falls through */
        case 'S': break;
      }
      sec += mt * parseInt(m[i], 10);
    }
    return sec;
  }

  var good_pd_date = new Date('2017-02-19T19:06:09.000Z');
  if(isNaN(good_pd_date.getFullYear())) good_pd_date = new Date('2/19/17');
  var good_pd = good_pd_date.getFullYear() == 2017;
  /* parses a date as a local date */
  function parseDate(str, fixdate) {
    var d = new Date(str);
    if(good_pd) {
      if(fixdate > 0) d.setTime(d.getTime() + d.getTimezoneOffset() * 60 * 1000);
      else if(fixdate < 0) d.setTime(d.getTime() - d.getTimezoneOffset() * 60 * 1000);
      return d;
    }
    if(str instanceof Date) return str;
    if(good_pd_date.getFullYear() == 1917 && !isNaN(d.getFullYear())) {
      var s = d.getFullYear();
      if(str.indexOf("" + s) > -1) return d;
      d.setFullYear(d.getFullYear() + 100); return d;
    }
    var n = str.match(/\d+/g)||["2017","2","19","0","0","0"];
    var out = new Date(+n[0], +n[1] - 1, +n[2], (+n[3]||0), (+n[4]||0), (+n[5]||0));
    if(str.indexOf("Z") > -1) out = new Date(out.getTime() - out.getTimezoneOffset() * 60 * 1000);
    return out;
  }

  function cc2str(arr) {
    var o = "";
    for(var i = 0; i != arr.length; ++i) o += String.fromCharCode(arr[i]);
    return o;
  }

  function dup(o) {
    if(typeof JSON != 'undefined' && !Array.isArray(o)) return JSON.parse(JSON.stringify(o));
    if(typeof o != 'object' || o == null) return o;
    if(o instanceof Date) return new Date(o.getTime());
    var out = {};
    for(var k in o) if(o.hasOwnProperty(k)) out[k] = dup(o[k]);
    return out;
  }

  function fill(c,l) { var o = ""; while(o.length < l) o+=c; return o; }

  /* TODO: stress test */
  function fuzzynum(s) {
    var v = Number(s);
    if(!isNaN(v)) return v;
    var wt = 1;
    var ss = s.replace(/([\d]),([\d])/g,"$1$2").replace(/[$]/g,"").replace(/[%]/g, function() { wt *= 100; return "";});
    if(!isNaN(v = Number(ss))) return v / wt;
    ss = ss.replace(/[(](.*)[)]/,function($$, $1) { wt = -wt; return $1;});
    if(!isNaN(v = Number(ss))) return v / wt;
    return v;
  }
  function fuzzydate(s) {
    var o = new Date(s), n = new Date(NaN);
    var y = o.getYear(), m = o.getMonth(), d = o.getDate();
    if(isNaN(d)) return n;
    if(y < 0 || y > 8099) return n;
    if((m > 0 || d > 1) && y != 101) return o;
    if(s.toLowerCase().match(/jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec/)) return o;
    if(s.match(/[^-0-9:,\/\\]/)) return n;
    return o;
  }

  var safe_split_regex = "abacaba".split(/(:?b)/i).length == 5;
  function split_regex(str, re, def) {
    if(safe_split_regex || typeof re == "string") return str.split(re);
    var p = str.split(re), o = [p[0]];
    for(var i = 1; i < p.length; ++i) { o.push(def); o.push(p[i]); }
    return o;
  }
  function getdatastr(data) {
    if(!data) return null;
    if(data.data) return debom(data.data);
    if(data.asNodeBuffer && has_buf) return debom(data.asNodeBuffer().toString('binary'));
    if(data.asBinary) return debom(data.asBinary());
    if(data._data && data._data.getContent) return debom(cc2str(Array.prototype.slice.call(data._data.getContent(),0)));
    return null;
  }

  function getdatabin(data) {
    if(!data) return null;
    if(data.data) return char_codes(data.data);
    if(data.asNodeBuffer && has_buf) return data.asNodeBuffer();
    if(data._data && data._data.getContent) {
      var o = data._data.getContent();
      if(typeof o == "string") return char_codes(o);
      return Array.prototype.slice.call(o);
    }
    return null;
  }

  function getdata(data) { return (data && data.name.slice(-4) === ".bin") ? getdatabin(data) : getdatastr(data); }

  /* Part 2 Section 10.1.2 "Mapping Content Types" Names are case-insensitive */
  /* OASIS does not comment on filename case sensitivity */
  function safegetzipfile(zip, file) {
    var k = keys(zip.files);
    var f = file.toLowerCase(), g = f.replace(/\//g,'\\');
    for(var i=0; i<k.length; ++i) {
      var n = k[i].toLowerCase();
      if(f == n || g == n) return zip.files[k[i]];
    }
    return null;
  }

  function getzipfile(zip, file) {
    var o = safegetzipfile(zip, file);
    if(o == null) throw new Error("Cannot find file " + file + " in zip");
    return o;
  }

  function getzipdata(zip, file, safe) {
    if(!safe) return getdata(getzipfile(zip, file));
    if(!file) return null;
    try { return getzipdata(zip, file); } catch(e) { return null; }
  }

  function getzipstr(zip, file, safe) {
    if(!safe) return getdatastr(getzipfile(zip, file));
    if(!file) return null;
    try { return getzipstr(zip, file); } catch(e) { return null; }
  }

  function zipentries(zip) {
    var k = keys(zip.files), o = [];
    for(var i = 0; i < k.length; ++i) if(k[i].slice(-1) != '/') o.push(k[i]);
    return o.sort();
  }

  var jszip;
  /*global JSZipSync:true */
  if(typeof JSZipSync !== 'undefined') jszip = JSZipSync;
  if(typeof exports !== 'undefined') {
    if(typeof module !== 'undefined' && module.exports) {
      if(typeof jszip === 'undefined') jszip = undefined;
    }
  }

  function resolve_path(path, base) {
    var result = base.split('/');
    if(base.slice(-1) != "/") result.pop(); // folder path
    var target = path.split('/');
    while (target.length !== 0) {
      var step = target.shift();
      if (step === '..') result.pop();
      else if (step !== '.') result.push(step);
    }
    return result.join('/');
  }
  var XML_HEADER = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\r\n';
  var attregexg=/([^"\s?>\/]+)\s*=\s*((?:")([^"]*)(?:")|(?:')([^']*)(?:')|([^'">\s]+))/g;
  var tagregex=/<[\/\?]?[a-zA-Z0-9:]+(?:\s+[^"\s?>\/]+\s*=\s*(?:"[^"]*"|'[^']*'|[^'">\s=]+))*\s?[\/\?]?>/g;
  if(!(XML_HEADER.match(tagregex))) tagregex = /<[^>]*>/g;
  var nsregex=/<\w*:/, nsregex2 = /<(\/?)\w+:/;
  function parsexmltag(tag, skip_root) {
    var z = ({});
    var eq = 0, c = 0;
    for(; eq !== tag.length; ++eq) if((c = tag.charCodeAt(eq)) === 32 || c === 10 || c === 13) break;
    if(!skip_root) z[0] = tag.slice(0, eq);
    if(eq === tag.length) return z;
    var m = tag.match(attregexg), j=0, v="", i=0, q="", cc="", quot = 1;
    if(m) for(i = 0; i != m.length; ++i) {
      cc = m[i];
      for(c=0; c != cc.length; ++c) if(cc.charCodeAt(c) === 61) break;
      q = cc.slice(0,c).trim();
      while(cc.charCodeAt(c+1) == 32) ++c;
      quot = ((eq=cc.charCodeAt(c+1)) == 34 || eq == 39) ? 1 : 0;
      v = cc.slice(c+1+quot, cc.length-quot);
      for(j=0;j!=q.length;++j) if(q.charCodeAt(j) === 58) break;
      if(j===q.length) {
        if(q.indexOf("_") > 0) q = q.slice(0, q.indexOf("_")); // from ods
        z[q] = v;
        z[q.toLowerCase()] = v;
      }
      else {
        var k = (j===5 && q.slice(0,5)==="xmlns"?"xmlns":"")+q.slice(j+1);
        if(z[k] && q.slice(j-3,j) == "ext") continue; // from ods
        z[k] = v;
        z[k.toLowerCase()] = v;
      }
    }
    return z;
  }
  function strip_ns(x) { return x.replace(nsregex2, "<$1"); }

  var encodings = {
    '&quot;': '"',
    '&apos;': "'",
    '&gt;': '>',
    '&lt;': '<',
    '&amp;': '&'
  };
  var rencoding = evert(encodings);
//var rencstr = "&<>'\"".split("");

// TODO: CP remap (need to read file version to determine OS)
  var unescapexml = (function() {
    /* 22.4.2.4 bstr (Basic String) */
    var encregex = /&(?:quot|apos|gt|lt|amp|#x?([\da-fA-F]+));/g, coderegex = /_x([\da-fA-F]{4})_/g;
    return function unescapexml(text) {
      var s = text + '', i = s.indexOf("<![CDATA[");
      if(i == -1) return s.replace(encregex, function($$, $1) { return encodings[$$]||String.fromCharCode(parseInt($1,$$.indexOf("x")>-1?16:10))||$$; }).replace(coderegex,function(m,c) {return String.fromCharCode(parseInt(c,16));});
      var j = s.indexOf("]]>");
      return unescapexml(s.slice(0, i)) + s.slice(i+9,j) + unescapexml(s.slice(j+3));
    };
  })();

  var decregex=/[&<>'"]/g, charegex = /[\u0000-\u0008\u000b-\u001f]/g;
  function escapexml(text){
    var s = text + '';
    return s.replace(decregex, function(y) { return rencoding[y]; }).replace(charegex,function(s) { return "_x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + "_";});
  }
  function escapexmltag(text){ return escapexml(text).replace(/ /g,"_x0020_"); }

  var htmlcharegex = /[\u0000-\u001f]/g;
  function escapehtml(text){
    var s = text + '';
    return s.replace(decregex, function(y) { return rencoding[y]; }).replace(/\n/g, "<br/>").replace(htmlcharegex,function(s) { return "&#x" + ("000"+s.charCodeAt(0).toString(16)).slice(-4) + ";"; });
  }

  function escapexlml(text){
    var s = text + '';
    return s.replace(decregex, function(y) { return rencoding[y]; }).replace(htmlcharegex,function(s) { return "&#x" + (s.charCodeAt(0).toString(16)).toUpperCase() + ";"; });
  }

  /* TODO: handle codepages */
  var xlml_fixstr = (function() {
    var entregex = /&#(\d+);/g;
    function entrepl($$,$1) { return String.fromCharCode(parseInt($1,10)); }
    return function xlml_fixstr(str) { return str.replace(entregex,entrepl); };
  })();
  var xlml_unfixstr = (function() {
    return function xlml_unfixstr(str) { return str.replace(/(\r\n|[\r\n])/g,"\&#10;"); };
  })();

  function parsexmlbool(value) {
    switch(value) {
      case 1: case true: case '1': case 'true': case 'TRUE': return true;
      /* case '0': case 'false': case 'FALSE':*/
      default: return false;
    }
  }

  var utf8read = function utf8reada(orig) {
    var out = "", i = 0, c = 0, d = 0, e = 0, f = 0, w = 0;
    while (i < orig.length) {
      c = orig.charCodeAt(i++);
      if (c < 128) { out += String.fromCharCode(c); continue; }
      d = orig.charCodeAt(i++);
      if (c>191 && c<224) { f = ((c & 31) << 6); f |= (d & 63); out += String.fromCharCode(f); continue; }
      e = orig.charCodeAt(i++);
      if (c < 240) { out += String.fromCharCode(((c & 15) << 12) | ((d & 63) << 6) | (e & 63)); continue; }
      f = orig.charCodeAt(i++);
      w = (((c & 7) << 18) | ((d & 63) << 12) | ((e & 63) << 6) | (f & 63))-65536;
      out += String.fromCharCode(0xD800 + ((w>>>10)&1023));
      out += String.fromCharCode(0xDC00 + (w&1023));
    }
    return out;
  };

  var utf8write = function(orig) {
    var out = [], i = 0, c = 0, d = 0;
    while(i < orig.length) {
      c = orig.charCodeAt(i++);
      switch(true) {
        case c < 128: out.push(String.fromCharCode(c)); break;
        case c < 2048:
          out.push(String.fromCharCode(192 + (c >> 6)));
          out.push(String.fromCharCode(128 + (c & 63)));
          break;
        case c >= 55296 && c < 57344:
          c -= 55296; d = orig.charCodeAt(i++) - 56320 + (c<<10);
          out.push(String.fromCharCode(240 + ((d >>18) & 7)));
          out.push(String.fromCharCode(144 + ((d >>12) & 63)));
          out.push(String.fromCharCode(128 + ((d >> 6) & 63)));
          out.push(String.fromCharCode(128 + (d & 63)));
          break;
        default:
          out.push(String.fromCharCode(224 + (c >> 12)));
          out.push(String.fromCharCode(128 + ((c >> 6) & 63)));
          out.push(String.fromCharCode(128 + (c & 63)));
      }
    }
    return out.join("");
  };

  if(has_buf) {
    var utf8readb = function utf8readb(data) {
      var out = Buffer.alloc(2*data.length), w, i, j = 1, k = 0, ww=0, c;
      for(i = 0; i < data.length; i+=j) {
        j = 1;
        if((c=data.charCodeAt(i)) < 128) w = c;
        else if(c < 224) { w = (c&31)*64+(data.charCodeAt(i+1)&63); j=2; }
        else if(c < 240) { w=(c&15)*4096+(data.charCodeAt(i+1)&63)*64+(data.charCodeAt(i+2)&63); j=3; }
        else { j = 4;
          w = (c & 7)*262144+(data.charCodeAt(i+1)&63)*4096+(data.charCodeAt(i+2)&63)*64+(data.charCodeAt(i+3)&63);
          w -= 65536; ww = 0xD800 + ((w>>>10)&1023); w = 0xDC00 + (w&1023);
        }
        if(ww !== 0) { out[k++] = ww&255; out[k++] = ww>>>8; ww = 0; }
        out[k++] = w%256; out[k++] = w>>>8;
      }
      return out.slice(0,k).toString('ucs2');
    };
    var corpus = "foo bar baz\u00e2\u0098\u0083\u00f0\u009f\u008d\u00a3";
    if(utf8read(corpus) == utf8readb(corpus)) utf8read = utf8readb;
    // $FlowIgnore
    var utf8readc = function utf8readc(data) { return Buffer_from(data, 'binary').toString('utf8'); };
    if(utf8read(corpus) == utf8readc(corpus)) utf8read = utf8readc;

    // $FlowIgnore
    utf8write = function(data) { return Buffer_from(data, 'utf8').toString("binary"); };
  }

// matches <foo>...</foo> extracts content
  var matchtag = (function() {
    var mtcache = ({});
    return function matchtag(f,g) {
      var t = f+"|"+(g||"");
      if(mtcache[t]) return mtcache[t];
      return (mtcache[t] = new RegExp('<(?:\\w+:)?'+f+'(?: xml:space="preserve")?(?:[^>]*)>([\\s\\S]*?)</(?:\\w+:)?'+f+'>',((g||""))));
    };
  })();

  var htmldecode = (function() {
    var entities = [
      ['nbsp', ' '], ['middot', '·'],
      ['quot', '"'], ['apos', "'"], ['gt',   '>'], ['lt',   '<'], ['amp',  '&']
    ].map(function(x) { return [new RegExp('&' + x[0] + ';', "g"), x[1]]; });
    return function htmldecode(str) {
      var o = str.replace(/^[\t\n\r ]+/, "").replace(/[\t\n\r ]+$/,"").replace(/[\t\n\r ]+/g, " ").replace(/<\s*[bB][rR]\s*\/?>/g,"\n").replace(/<[^>]*>/g,"");
      for(var i = 0; i < entities.length; ++i) o = o.replace(entities[i][0], entities[i][1]);
      return o;
    };
  })();

  var vtregex = (function(){ var vt_cache = {};
    return function vt_regex(bt) {
      if(vt_cache[bt] !== undefined) return vt_cache[bt];
      return (vt_cache[bt] = new RegExp("<(?:vt:)?" + bt + ">([\\s\\S]*?)</(?:vt:)?" + bt + ">", 'g') );
    };})();
  var vtvregex = /<\/?(?:vt:)?variant>/g, vtmregex = /<(?:vt:)([^>]*)>([\s\S]*)</;
  function parseVector(data, opts) {
    var h = parsexmltag(data);

    var matches = data.match(vtregex(h.baseType))||[];
    var res = [];
    if(matches.length != h.size) {
      if(opts.WTF) throw new Error("unexpected vector length " + matches.length + " != " + h.size);
      return res;
    }
    matches.forEach(function(x) {
      var v = x.replace(vtvregex,"").match(vtmregex);
      if(v) res.push({v:utf8read(v[2]), t:v[1]});
    });
    return res;
  }

  var wtregex = /(^\s|\s$|\n)/;
  function writetag(f,g) { return '<' + f + (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f + '>'; }

  function wxt_helper(h) { return keys(h).map(function(k) { return " " + k + '="' + h[k] + '"';}).join(""); }
  function writextag(f,g,h) { return '<' + f + ((h != null) ? wxt_helper(h) : "") + ((g != null) ? (g.match(wtregex)?' xml:space="preserve"' : "") + '>' + g + '</' + f : "/") + '>';}

  function write_w3cdtf(d, t) { try { return d.toISOString().replace(/\.\d*/,""); } catch(e) { if(t) throw e; } return ""; }

  function write_vt(s) {
    switch(typeof s) {
      case 'string': return writextag('vt:lpwstr', s);
      case 'number': return writextag((s|0)==s?'vt:i4':'vt:r8', String(s));
      case 'boolean': return writextag('vt:bool',s?'true':'false');
    }
    if(s instanceof Date) return writextag('vt:filetime', write_w3cdtf(s));
    throw new Error("Unable to serialize " + s);
  }

  var XMLNS = ({
    'dc': 'http://purl.org/dc/elements/1.1/',
    'dcterms': 'http://purl.org/dc/terms/',
    'dcmitype': 'http://purl.org/dc/dcmitype/',
    'mx': 'http://schemas.microsoft.com/office/mac/excel/2008/main',
    'r': 'http://schemas.openxmlformats.org/officeDocument/2006/relationships',
    'sjs': 'http://schemas.openxmlformats.org/package/2006/sheetjs/core-properties',
    'vt': 'http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes',
    'xsi': 'http://www.w3.org/2001/XMLSchema-instance',
    'xsd': 'http://www.w3.org/2001/XMLSchema'
  });

  XMLNS.main = [
    'http://schemas.openxmlformats.org/spreadsheetml/2006/main',
    'http://purl.oclc.org/ooxml/spreadsheetml/main',
    'http://schemas.microsoft.com/office/excel/2006/main',
    'http://schemas.microsoft.com/office/excel/2006/2'
  ];

  var XLMLNS = ({
    'o':    'urn:schemas-microsoft-com:office:office',
    'x':    'urn:schemas-microsoft-com:office:excel',
    'ss':   'urn:schemas-microsoft-com:office:spreadsheet',
    'dt':   'uuid:C2F41010-65B3-11d1-A29F-00AA00C14882',
    'mv':   'http://macVmlSchemaUri',
    'v':    'urn:schemas-microsoft-com:vml',
    'html': 'http://www.w3.org/TR/REC-html40'
  });
  function read_double_le(b, idx) {
    var s = 1 - 2 * (b[idx + 7] >>> 7);
    var e = ((b[idx + 7] & 0x7f) << 4) + ((b[idx + 6] >>> 4) & 0x0f);
    var m = (b[idx+6]&0x0f);
    for(var i = 5; i >= 0; --i) m = m * 256 + b[idx + i];
    if(e == 0x7ff) return m == 0 ? (s * Infinity) : NaN;
    if(e == 0) e = -1022;
    else { e -= 1023; m += Math.pow(2,52); }
    return s * Math.pow(2, e - 52) * m;
  }

  function write_double_le(b, v, idx) {
    var bs = ((((v < 0) || (1/v == -Infinity)) ? 1 : 0) << 7), e = 0, m = 0;
    var av = bs ? (-v) : v;
    if(!isFinite(av)) { e = 0x7ff; m = isNaN(v) ? 0x6969 : 0; }
    else if(av == 0) e = m = 0;
    else {
      e = Math.floor(Math.log(av) / Math.LN2);
      m = av * Math.pow(2, 52 - e);
      if((e <= -1023) && (!isFinite(m) || (m < Math.pow(2,52)))) { e = -1022; }
      else { m -= Math.pow(2,52); e+=1023; }
    }
    for(var i = 0; i <= 5; ++i, m/=256) b[idx + i] = m & 0xff;
    b[idx + 6] = ((e & 0x0f) << 4) | (m & 0xf);
    b[idx + 7] = (e >> 4) | bs;
  }

  var __toBuffer = function(bufs) { var x=[],w=10240; for(var i=0;i<bufs[0].length;++i) if(bufs[0][i]) for(var j=0,L=bufs[0][i].length;j<L;j+=w) x.push.apply(x, bufs[0][i].slice(j,j+w)); return x; };
  var ___toBuffer = __toBuffer;
  var __utf16le = function(b,s,e) { var ss=[]; for(var i=s; i<e; i+=2) ss.push(String.fromCharCode(__readUInt16LE(b,i))); return ss.join("").replace(chr0,''); };
  var ___utf16le = __utf16le;
  var __hexlify = function(b,s,l) { var ss=[]; for(var i=s; i<s+l; ++i) ss.push(("0" + b[i].toString(16)).slice(-2)); return ss.join(""); };
  var ___hexlify = __hexlify;
  var __utf8 = function(b,s,e) { var ss=[]; for(var i=s; i<e; i++) ss.push(String.fromCharCode(__readUInt8(b,i))); return ss.join(""); };
  var ___utf8 = __utf8;
  var __lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___lpstr = __lpstr;
  var __cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___cpstr = __cpstr;
  var __lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len-1) : "";};
  var ___lpwstr = __lpwstr;
  var __lpp4, ___lpp4;
  __lpp4 = ___lpp4 = function lpp4_(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf16le(b, i+4,i+4+len) : "";};
  var __8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? __utf8(b, i+4,i+4+len) : "";};
  var ___8lpp4 = __8lpp4;
  var __double, ___double;
  __double = ___double = function(b, idx) { return read_double_le(b, idx);};
  var is_buf = function is_buf_a(a) { return Array.isArray(a); };

  if(has_buf) {
    __utf16le = function(b,s,e) { if(!Buffer.isBuffer(b)) return ___utf16le(b,s,e); return b.toString('utf16le',s,e).replace(chr0,'')/*.replace(chr1,'!')*/; };
    __hexlify = function(b,s,l) { return Buffer.isBuffer(b) ? b.toString('hex',s,s+l) : ___hexlify(b,s,l); };
    __lpstr = function lpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
    __cpstr = function cpstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___cpstr(b, i); var len = b.readUInt32LE(i); return len > 0 ? b.toString('utf8',i+4,i+4+len-1) : "";};
    __lpwstr = function lpwstr_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpwstr(b, i); var len = 2*b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len-1);};
    __lpp4 = function lpp4_b(b, i) { if(!Buffer.isBuffer(b)) return ___lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf16le',i+4,i+4+len);};
    __8lpp4 = function lpp4_8b(b, i) { if(!Buffer.isBuffer(b)) return ___8lpp4(b, i); var len = b.readUInt32LE(i); return b.toString('utf8',i+4,i+4+len);};
    __utf8 = function utf8_b(b, s, e) { return (Buffer.isBuffer(b)) ? b.toString('utf8',s,e) : ___utf8(b,s,e); };
    __toBuffer = function(bufs) { return (bufs[0].length > 0 && Buffer.isBuffer(bufs[0][0])) ? Buffer.concat(bufs[0]) : ___toBuffer(bufs);};
    bconcat = function(bufs) { return Buffer.isBuffer(bufs[0]) ? Buffer.concat(bufs) : [].concat.apply([], bufs); };
    __double = function double_(b, i) { if(Buffer.isBuffer(b)) return b.readDoubleLE(i); return ___double(b,i); };
    is_buf = function is_buf_b(a) { return Buffer.isBuffer(a) || Array.isArray(a); };
  }

  /* from js-xls */
  if(typeof cptable !== 'undefined') {
    __utf16le = function(b,s,e) { return cptable.utils.decode(1200, b.slice(s,e)).replace(chr0, ''); };
    __utf8 = function(b,s,e) { return cptable.utils.decode(65001, b.slice(s,e)); };
    __lpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_ansi, b.slice(i+4, i+4+len-1)) : "";};
    __cpstr = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(current_codepage, b.slice(i+4, i+4+len-1)) : "";};
    __lpwstr = function(b,i) { var len = 2*__readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len-1)) : "";};
    __lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(1200, b.slice(i+4,i+4+len)) : "";};
    __8lpp4 = function(b,i) { var len = __readUInt32LE(b,i); return len > 0 ? cptable.utils.decode(65001, b.slice(i+4,i+4+len)) : "";};
  }

  var __readUInt8 = function(b, idx) { return b[idx]; };
  var __readUInt16LE = function(b, idx) { return (b[idx+1]*(1<<8))+b[idx]; };
  var __readInt16LE = function(b, idx) { var u = (b[idx+1]*(1<<8))+b[idx]; return (u < 0x8000) ? u : ((0xffff - u + 1) * -1); };
  var __readUInt32LE = function(b, idx) { return b[idx+3]*(1<<24)+(b[idx+2]<<16)+(b[idx+1]<<8)+b[idx]; };
  var __readInt32LE = function(b, idx) { return (b[idx+3]<<24)|(b[idx+2]<<16)|(b[idx+1]<<8)|b[idx]; };
  var __readInt32BE = function(b, idx) { return (b[idx]<<24)|(b[idx+1]<<16)|(b[idx+2]<<8)|b[idx+3]; };

  function ReadShift(size, t) {
    var o="", oI, oR, oo=[], w, vv, i, loc;
    switch(t) {
      case 'dbcs':
        loc = this.l;
        if(has_buf && Buffer.isBuffer(this)) o = this.slice(this.l, this.l+2*size).toString("utf16le");
        else for(i = 0; i < size; ++i) { o+=String.fromCharCode(__readUInt16LE(this, loc)); loc+=2; }
        size *= 2;
        break;

      case 'utf8': o = __utf8(this, this.l, this.l + size); break;
      case 'utf16le': size *= 2; o = __utf16le(this, this.l, this.l + size); break;

      case 'wstr':
        if(typeof cptable !== 'undefined') o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l+2*size));
        else return ReadShift.call(this, size, 'dbcs');
        size = 2 * size; break;

      /* [MS-OLEDS] 2.1.4 LengthPrefixedAnsiString */
      case 'lpstr-ansi': o = __lpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
      case 'lpstr-cp': o = __cpstr(this, this.l); size = 4 + __readUInt32LE(this, this.l); break;
      /* [MS-OLEDS] 2.1.5 LengthPrefixedUnicodeString */
      case 'lpwstr': o = __lpwstr(this, this.l); size = 4 + 2 * __readUInt32LE(this, this.l); break;
      /* [MS-OFFCRYPTO] 2.1.2 Length-Prefixed Padded Unicode String (UNICODE-LP-P4) */
      case 'lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __lpp4(this, this.l); if(size & 0x02) size += 2; break;
      /* [MS-OFFCRYPTO] 2.1.3 Length-Prefixed UTF-8 String (UTF-8-LP-P4) */
      case '8lpp4': size = 4 +  __readUInt32LE(this, this.l); o = __8lpp4(this, this.l); if(size & 0x03) size += 4 - (size & 0x03); break;

      case 'cstr': size = 0; o = "";
        while((w=__readUInt8(this, this.l + size++))!==0) oo.push(_getchar(w));
        o = oo.join(""); break;
      case '_wstr': size = 0; o = "";
        while((w=__readUInt16LE(this,this.l +size))!==0){oo.push(_getchar(w));size+=2;}
        size+=2; o = oo.join(""); break;

      /* sbcs and dbcs support continue records in the SST way TODO codepages */
      case 'dbcs-cont': o = ""; loc = this.l;
        for(i = 0; i < size; ++i) {
          if(this.lens && this.lens.indexOf(loc) !== -1) {
            w = __readUInt8(this, loc);
            this.l = loc + 1;
            vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
            return oo.join("") + vv;
          }
          oo.push(_getchar(__readUInt16LE(this, loc)));
          loc+=2;
        } o = oo.join(""); size *= 2; break;

      case 'cpstr':
        if(typeof cptable !== 'undefined') {
          o = cptable.utils.decode(current_codepage, this.slice(this.l, this.l + size));
          break;
        }
      /* falls through */
      case 'sbcs-cont': o = ""; loc = this.l;
        for(i = 0; i != size; ++i) {
          if(this.lens && this.lens.indexOf(loc) !== -1) {
            w = __readUInt8(this, loc);
            this.l = loc + 1;
            vv = ReadShift.call(this, size-i, w ? 'dbcs-cont' : 'sbcs-cont');
            return oo.join("") + vv;
          }
          oo.push(_getchar(__readUInt8(this, loc)));
          loc+=1;
        } o = oo.join(""); break;

      default:
        switch(size) {
          case 1: oI = __readUInt8(this, this.l); this.l++; return oI;
          case 2: oI = (t === 'i' ? __readInt16LE : __readUInt16LE)(this, this.l); this.l += 2; return oI;
          case 4: case -4:
            if(t === 'i' || ((this[this.l+3] & 0x80)===0)) { oI = ((size > 0) ? __readInt32LE : __readInt32BE)(this, this.l); this.l += 4; return oI; }
            else { oR = __readUInt32LE(this, this.l); this.l += 4; } return oR;
          case 8: case -8:
            if(t === 'f') {
              if(size == 8) oR = __double(this, this.l);
              else oR = __double([this[this.l+7],this[this.l+6],this[this.l+5],this[this.l+4],this[this.l+3],this[this.l+2],this[this.l+1],this[this.l+0]], 0);
              this.l += 8; return oR;
            } else size = 8;
          /* falls through */
          case 16: o = __hexlify(this, this.l, size); break;
        }}
    this.l+=size; return o;
  }

  var __writeUInt32LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); b[idx+2] = ((val >>> 16) & 0xFF); b[idx+3] = ((val >>> 24) & 0xFF); };
  var __writeInt32LE  = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >> 8) & 0xFF); b[idx+2] = ((val >> 16) & 0xFF); b[idx+3] = ((val >> 24) & 0xFF); };
  var __writeUInt16LE = function(b, val, idx) { b[idx] = (val & 0xFF); b[idx+1] = ((val >>> 8) & 0xFF); };

  function WriteShift(t, val, f) {
    var size = 0, i = 0;
    if(f === 'dbcs') {
      for(i = 0; i != val.length; ++i) __writeUInt16LE(this, val.charCodeAt(i), this.l + 2 * i);
      size = 2 * val.length;
    } else if(f === 'sbcs') {
      /* TODO: codepage */
      val = val.replace(/[^\x00-\x7F]/g, "_");
      for(i = 0; i != val.length; ++i) this[this.l + i] = (val.charCodeAt(i) & 0xFF);
      size = val.length;
    } else if(f === 'hex') {
      for(; i < t; ++i) {
        this[this.l++] = (parseInt(val.slice(2*i, 2*i+2), 16)||0);
      } return this;
    } else if(f === 'utf16le') {
      var end = Math.min(this.l + t, this.length);
      for(i = 0; i < Math.min(val.length, t); ++i) {
        var cc = val.charCodeAt(i);
        this[this.l++] = (cc & 0xff);
        this[this.l++] = (cc >> 8);
      }
      while(this.l < end) this[this.l++] = 0;
      return this;
    } else  switch(t) {
      case  1: size = 1; this[this.l] = val&0xFF; break;
      case  2: size = 2; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; break;
      case  3: size = 3; this[this.l] = val&0xFF; val >>>= 8; this[this.l+1] = val&0xFF; val >>>= 8; this[this.l+2] = val&0xFF; break;
      case  4: size = 4; __writeUInt32LE(this, val, this.l); break;
      case  8: size = 8; if(f === 'f') { write_double_le(this, val, this.l); break; }
      /* falls through */
      case 16: break;
      case -4: size = 4; __writeInt32LE(this, val, this.l); break;
    }
    this.l += size; return this;
  }

  function CheckField(hexstr, fld) {
    var m = __hexlify(this,this.l,hexstr.length>>1);
    if(m !== hexstr) throw new Error(fld + 'Expected ' + hexstr + ' saw ' + m);
    this.l += hexstr.length>>1;
  }

  function prep_blob(blob, pos) {
    blob.l = pos;
    blob.read_shift = ReadShift;
    blob.chk = CheckField;
    blob.write_shift = WriteShift;
  }

  function parsenoop(blob, length) { blob.l += length; }

  function new_buf(sz) {
    var o = new_raw_buf(sz);
    prep_blob(o, 0);
    return o;
  }

  /* [MS-XLSB] 2.1.4 Record */
  function recordhopper(data, cb, opts) {
    if(!data) return;
    var tmpbyte, cntbyte, length;
    prep_blob(data, data.l || 0);
    var L = data.length, RT = 0, tgt = 0;
    while(data.l < L) {
      RT = data.read_shift(1);
      if(RT & 0x80) RT = (RT & 0x7F) + ((data.read_shift(1) & 0x7F)<<7);
      var R = XLSBRecordEnum[RT] || XLSBRecordEnum[0xFFFF];
      tmpbyte = data.read_shift(1);
      length = tmpbyte & 0x7F;
      for(cntbyte = 1; cntbyte <4 && (tmpbyte & 0x80); ++cntbyte) length += ((tmpbyte = data.read_shift(1)) & 0x7F)<<(7*cntbyte);
      tgt = data.l + length;
      var d = (R.f||parsenoop)(data, length, opts);
      data.l = tgt;
      if(cb(d, R.n, RT)) return;
    }
  }

  /* control buffer usage for fixed-length buffers */
  function buf_array() {
    var bufs = [], blksz = has_buf ? 256 : 2048;
    var newblk = function ba_newblk(sz) {
      var o = (new_buf(sz));
      prep_blob(o, 0);
      return o;
    };

    var curbuf = newblk(blksz);

    var endbuf = function ba_endbuf() {
      if(!curbuf) return;
      if(curbuf.length > curbuf.l) { curbuf = curbuf.slice(0, curbuf.l); curbuf.l = curbuf.length; }
      if(curbuf.length > 0) bufs.push(curbuf);
      curbuf = null;
    };

    var next = function ba_next(sz) {
      if(curbuf && (sz < (curbuf.length - curbuf.l))) return curbuf;
      endbuf();
      return (curbuf = newblk(Math.max(sz+1, blksz)));
    };

    var end = function ba_end() {
      endbuf();
      return __toBuffer([bufs]);
    };

    var push = function ba_push(buf) { endbuf(); curbuf = buf; if(curbuf.l == null) curbuf.l = curbuf.length; next(blksz); };

    return ({ next:next, push:push, end:end, _bufs:bufs });
  }

  function write_record(ba, type, payload, length) {
    var t = +XLSBRE[type], l;
    if(isNaN(t)) return; // TODO: throw something here?
    if(!length) length = XLSBRecordEnum[t].p || (payload||[]).length || 0;
    l = 1 + (t >= 0x80 ? 1 : 0) + 1/* + length*/;
    if(length >= 0x80) ++l; if(length >= 0x4000) ++l; if(length >= 0x200000) ++l;
    var o = ba.next(l);
    if(t <= 0x7F) o.write_shift(1, t);
    else {
      o.write_shift(1, (t & 0x7F) + 0x80);
      o.write_shift(1, (t >> 7));
    }
    for(var i = 0; i != 4; ++i) {
      if(length >= 0x80) { o.write_shift(1, (length & 0x7F)+0x80); length >>= 7; }
      else { o.write_shift(1, length); break; }
    }
    if(length > 0 && is_buf(payload)) ba.push(payload);
  }
  /* XLS ranges enforced */
  function shift_cell_xls(cell, tgt, opts) {
    var out = dup(cell);
    if(tgt.s) {
      if(out.cRel) out.c += tgt.s.c;
      if(out.rRel) out.r += tgt.s.r;
    } else {
      if(out.cRel) out.c += tgt.c;
      if(out.rRel) out.r += tgt.r;
    }
    if(!opts || opts.biff < 12) {
      while(out.c >= 0x100) out.c -= 0x100;
      while(out.r >= 0x10000) out.r -= 0x10000;
    }
    return out;
  }

  function shift_range_xls(cell, range, opts) {
    var out = dup(cell);
    out.s = shift_cell_xls(out.s, range.s, opts);
    out.e = shift_cell_xls(out.e, range.s, opts);
    return out;
  }

  function encode_cell_xls(c, biff) {
    if(c.cRel && c.c < 0) { c = dup(c); c.c += (biff > 8) ? 0x4000 : 0x100; }
    if(c.rRel && c.r < 0) { c = dup(c); c.r += (biff > 8) ? 0x100000 : ((biff > 5) ? 0x10000 : 0x4000); }
    var s = encode_cell(c);
    if(c.cRel === 0) s = fix_col(s);
    if(c.rRel === 0) s = fix_row(s);
    return s;
  }

  function encode_range_xls(r, opts) {
    if(r.s.r == 0 && !r.s.rRel) {
      if(r.e.r == (opts.biff >= 12 ? 0xFFFFF : (opts.biff >= 8 ? 0x10000 : 0x4000)) && !r.e.rRel) {
        return (r.s.cRel ? "" : "$") + encode_col(r.s.c) + ":" + (r.e.cRel ? "" : "$") + encode_col(r.e.c);
      }
    }
    if(r.s.c == 0 && !r.s.cRel) {
      if(r.e.c == (opts.biff >= 12 ? 0xFFFF : 0xFF) && !r.e.cRel) {
        return (r.s.rRel ? "" : "$") + encode_row(r.s.r) + ":" + (r.e.rRel ? "" : "$") + encode_row(r.e.r);
      }
    }
    return encode_cell_xls(r.s, opts.biff) + ":" + encode_cell_xls(r.e, opts.biff);
  }
  var OFFCRYPTO = {};

  var make_offcrypto = function(O, _crypto) {
    var crypto;
    if(typeof _crypto !== 'undefined') crypto = _crypto;
    else if(typeof require !== 'undefined') {
      try { crypto = undefined; }
      catch(e) { crypto = null; }
    }

    O.rc4 = function(key, data) {
      var S = new Array(256);
      var c = 0, i = 0, j = 0, t = 0;
      for(i = 0; i != 256; ++i) S[i] = i;
      for(i = 0; i != 256; ++i) {
        j = (j + S[i] + (key[i%key.length]).charCodeAt(0))&255;
        t = S[i]; S[i] = S[j]; S[j] = t;
      }
      // $FlowIgnore
      i = j = 0; var out = Buffer(data.length);
      for(c = 0; c != data.length; ++c) {
        i = (i + 1)&255;
        j = (j + S[i])%256;
        t = S[i]; S[i] = S[j]; S[j] = t;
        out[c] = (data[c] ^ S[(S[i]+S[j])&255]);
      }
      return out;
    };

    O.md5 = function(hex) {
      if(!crypto) throw new Error("Unsupported crypto");
      return crypto.createHash('md5').update(hex).digest('hex');
    };
  };
  /*global crypto:true */
  make_offcrypto(OFFCRYPTO, typeof crypto !== "undefined" ? crypto : undefined);

  function decode_row(rowstr) { return parseInt(unfix_row(rowstr),10) - 1; }
  function encode_row(row) { return "" + (row + 1); }
  function fix_row(cstr) { return cstr.replace(/([A-Z]|^)(\d+)$/,"$1$$$2"); }
  function unfix_row(cstr) { return cstr.replace(/\$(\d+)$/,"$1"); }

  function decode_col(colstr) { var c = unfix_col(colstr), d = 0, i = 0; for(; i !== c.length; ++i) d = 26*d + c.charCodeAt(i) - 64; return d - 1; }
  function encode_col(col) { var s=""; for(++col; col; col=Math.floor((col-1)/26)) s = String.fromCharCode(((col-1)%26) + 65) + s; return s; }
  function fix_col(cstr) { return cstr.replace(/^([A-Z])/,"$$$1"); }
  function unfix_col(cstr) { return cstr.replace(/^\$([A-Z])/,"$1"); }

  function split_cell(cstr) { return cstr.replace(/(\$?[A-Z]*)(\$?\d*)/,"$1,$2").split(","); }
  function decode_cell(cstr) { var splt = split_cell(cstr); return { c:decode_col(splt[0]), r:decode_row(splt[1]) }; }
  function encode_cell(cell) { return encode_col(cell.c) + encode_row(cell.r); }
  function decode_range(range) { var x =range.split(":").map(decode_cell); return {s:x[0],e:x[x.length-1]}; }
  function encode_range(cs,ce) {
    if(typeof ce === 'undefined' || typeof ce === 'number') {
      return encode_range(cs.s, cs.e);
    }
    if(typeof cs !== 'string') cs = encode_cell((cs));
    if(typeof ce !== 'string') ce = encode_cell((ce));
    return cs == ce ? cs : cs + ":" + ce;
  }

  function safe_decode_range(range) {
    var o = {s:{c:0,r:0},e:{c:0,r:0}};
    var idx = 0, i = 0, cc = 0;
    var len = range.length;
    for(idx = 0; i < len; ++i) {
      if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
      idx = 26*idx + cc;
    }
    o.s.c = --idx;

    for(idx = 0; i < len; ++i) {
      if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
      idx = 10*idx + cc;
    }
    o.s.r = --idx;

    if(i === len || range.charCodeAt(++i) === 58) { o.e.c=o.s.c; o.e.r=o.s.r; return o; }

    for(idx = 0; i != len; ++i) {
      if((cc=range.charCodeAt(i)-64) < 1 || cc > 26) break;
      idx = 26*idx + cc;
    }
    o.e.c = --idx;

    for(idx = 0; i != len; ++i) {
      if((cc=range.charCodeAt(i)-48) < 0 || cc > 9) break;
      idx = 10*idx + cc;
    }
    o.e.r = --idx;
    return o;
  }

  function safe_format_cell(cell, v) {
    var q = (cell.t == 'd' && v instanceof Date);
    if(cell.z != null) try { return (cell.w = SSF.format(cell.z, q ? datenum(v) : v)); } catch(e) { }
    try { return (cell.w = SSF.format((cell.XF||{}).numFmtId||(q ? 14 : 0),  q ? datenum(v) : v)); } catch(e) { return ''+v; }
  }

  function format_cell(cell, v, o) {
    if(cell == null || cell.t == null || cell.t == 'z') return "";
    if(cell.w !== undefined) return cell.w;
    if(cell.t == 'd' && !cell.z && o && o.dateNF) cell.z = o.dateNF;
    if(v == undefined) return safe_format_cell(cell, cell.v);
    return safe_format_cell(cell, v);
  }

  function sheet_to_workbook(sheet, opts) {
    var n = opts && opts.sheet ? opts.sheet : "Sheet1";
    var sheets = {}; sheets[n] = sheet;
    return { SheetNames: [n], Sheets: sheets };
  }

  function sheet_add_aoa(_ws, data, opts) {
    var o = opts || {};
    var dense = _ws ? Array.isArray(_ws) : o.dense;
    if(DENSE != null && dense == null) dense = DENSE;
    var ws = _ws || (dense ? ([]) : ({}));
    var _R = 0, _C = 0;
    if(ws && o.origin != null) {
      if(typeof o.origin == 'number') _R = o.origin;
      else {
        var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
        _R = _origin.r; _C = _origin.c;
      }
    }
    var range = ({s: {c:10000000, r:10000000}, e: {c:0, r:0}});
    if(ws['!ref']) {
      var _range = safe_decode_range(ws['!ref']);
      range.s.c = _range.s.c;
      range.s.r = _range.s.r;
      range.e.c = Math.max(range.e.c, _range.e.c);
      range.e.r = Math.max(range.e.r, _range.e.r);
      if(_R == -1) range.e.r = _R = _range.e.r + 1;
    }
    for(var R = 0; R != data.length; ++R) {
      if(!data[R]) continue;
      if(!Array.isArray(data[R])) throw new Error("aoa_to_sheet expects an array of arrays");
      for(var C = 0; C != data[R].length; ++C) {
        if(typeof data[R][C] === 'undefined') continue;
        var cell = ({v: data[R][C] });
        var __R = _R + R, __C = _C + C;
        if(range.s.r > __R) range.s.r = __R;
        if(range.s.c > __C) range.s.c = __C;
        if(range.e.r < __R) range.e.r = __R;
        if(range.e.c < __C) range.e.c = __C;
        if(data[R][C] && typeof data[R][C] === 'object' && !Array.isArray(data[R][C]) && !(data[R][C] instanceof Date)) cell = data[R][C];
        else {
          if(Array.isArray(cell.v)) { cell.f = data[R][C][1]; cell.v = cell.v[0]; }
          if(cell.v === null) { if(cell.f) cell.t = 'n'; else if(!o.sheetStubs) continue; else cell.t = 'z'; }
          else if(typeof cell.v === 'number') cell.t = 'n';
          else if(typeof cell.v === 'boolean') cell.t = 'b';
          else if(cell.v instanceof Date) {
            cell.z = o.dateNF || SSF._table[14];
            if(o.cellDates) { cell.t = 'd'; cell.w = SSF.format(cell.z, datenum(cell.v)); }
            else { cell.t = 'n'; cell.v = datenum(cell.v); cell.w = SSF.format(cell.z, cell.v); }
          }
          else cell.t = 's';
        }
        if(dense) {
          if(!ws[__R]) ws[__R] = [];
          ws[__R][__C] = cell;
        } else {
          var cell_ref = encode_cell(({c:__C,r:__R}));
          ws[cell_ref] = cell;
        }
      }
    }
    if(range.s.c < 10000000) ws['!ref'] = encode_range(range);
    return ws;
  }
  function aoa_to_sheet(data, opts) { return sheet_add_aoa(null, data, opts); }

  function write_UInt32LE(x, o) {
    if(!o) o = new_buf(4);
    o.write_shift(4, x);
    return o;
  }

  /* [MS-XLSB] 2.5.168 */
  function parse_XLWideString(data) {
    var cchCharacters = data.read_shift(4);
    return cchCharacters === 0 ? "" : data.read_shift(cchCharacters, 'dbcs');
  }
  function write_XLWideString(data, o) {
    var _null = false; if(o == null) { _null = true; o = new_buf(4+2*data.length); }
    o.write_shift(4, data.length);
    if(data.length > 0) o.write_shift(0, data, 'dbcs');
    return _null ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.5.143 */
  function parse_StrRun(data) {
    return { ich: data.read_shift(2), ifnt: data.read_shift(2) };
  }
  function write_StrRun(run, o) {
    if(!o) o = new_buf(4);
    o.write_shift(2, run.ich || 0);
    o.write_shift(2, run.ifnt || 0);
    return o;
  }

  /* [MS-XLSB] 2.5.121 */
  function parse_RichStr(data, length) {
    var start = data.l;
    var flags = data.read_shift(1);
    var str = parse_XLWideString(data);
    var rgsStrRun = [];
    var z = ({ t: str, h: str });
    if((flags & 1) !== 0) { /* fRichStr */
      /* TODO: formatted string */
      var dwSizeStrRun = data.read_shift(4);
      for(var i = 0; i != dwSizeStrRun; ++i) rgsStrRun.push(parse_StrRun(data));
      z.r = rgsStrRun;
    }
    else z.r = [{ich:0, ifnt:0}];
    //if((flags & 2) !== 0) { /* fExtStr */
    //	/* TODO: phonetic string */
    //}
    data.l = start + length;
    return z;
  }
  function write_RichStr(str, o) {
    /* TODO: formatted string */
    var _null = false; if(o == null) { _null = true; o = new_buf(15+4*str.t.length); }
    o.write_shift(1,0);
    write_XLWideString(str.t, o);
    return _null ? o.slice(0, o.l) : o;
  }
  /* [MS-XLSB] 2.4.328 BrtCommentText (RichStr w/1 run) */
  var parse_BrtCommentText = parse_RichStr;
  function write_BrtCommentText(str, o) {
    /* TODO: formatted string */
    var _null = false; if(o == null) { _null = true; o = new_buf(23+4*str.t.length); }
    o.write_shift(1,1);
    write_XLWideString(str.t, o);
    o.write_shift(4,1);
    write_StrRun({ich:0,ifnt:0}, o);
    return _null ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.5.9 */
  function parse_XLSBCell(data) {
    var col = data.read_shift(4);
    var iStyleRef = data.read_shift(2);
    iStyleRef += data.read_shift(1) <<16;
    data.l++; //var fPhShow = data.read_shift(1);
    return { c:col, iStyleRef: iStyleRef };
  }
  function write_XLSBCell(cell, o) {
    if(o == null) o = new_buf(8);
    o.write_shift(-4, cell.c);
    o.write_shift(3, cell.iStyleRef || cell.s);
    o.write_shift(1, 0); /* fPhShow */
    return o;
  }


  /* [MS-XLSB] 2.5.21 */
  var parse_XLSBCodeName = parse_XLWideString;
  var write_XLSBCodeName = write_XLWideString;

  /* [MS-XLSB] 2.5.166 */
  function parse_XLNullableWideString(data) {
    var cchCharacters = data.read_shift(4);
    return cchCharacters === 0 || cchCharacters === 0xFFFFFFFF ? "" : data.read_shift(cchCharacters, 'dbcs');
  }
  function write_XLNullableWideString(data, o) {
    var _null = false; if(o == null) { _null = true; o = new_buf(127); }
    o.write_shift(4, data.length > 0 ? data.length : 0xFFFFFFFF);
    if(data.length > 0) o.write_shift(0, data, 'dbcs');
    return _null ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.5.165 */
  var parse_XLNameWideString = parse_XLWideString;
//var write_XLNameWideString = write_XLWideString;

  /* [MS-XLSB] 2.5.114 */
  var parse_RelID = parse_XLNullableWideString;
  var write_RelID = write_XLNullableWideString;


  /* [MS-XLS] 2.5.217 ; [MS-XLSB] 2.5.122 */
  function parse_RkNumber(data) {
    var b = data.slice(data.l, data.l+4);
    var fX100 = (b[0] & 1), fInt = (b[0] & 2);
    data.l+=4;
    b[0] &= 0xFC; // b[0] &= ~3;
    var RK = fInt === 0 ? __double([0,0,0,0,b[0],b[1],b[2],b[3]],0) : __readInt32LE(b,0)>>2;
    return fX100 ? (RK/100) : RK;
  }
  function write_RkNumber(data, o) {
    if(o == null) o = new_buf(4);
    var fX100 = 0, fInt = 0, d100 = data * 100;
    if((data == (data | 0)) && (data >= -(1<<29)) && (data < (1 << 29))) { fInt = 1; }
    else if((d100 == (d100 | 0)) && (d100 >= -(1<<29)) && (d100 < (1 << 29))) { fInt = 1; fX100 = 1; }
    if(fInt) o.write_shift(-4, ((fX100 ? d100 : data) << 2) + (fX100 + 2));
    else throw new Error("unsupported RkNumber " + data); // TODO
  }


  /* [MS-XLSB] 2.5.117 RfX */
  function parse_RfX(data ) {
    var cell = ({s: {}, e: {}});
    cell.s.r = data.read_shift(4);
    cell.e.r = data.read_shift(4);
    cell.s.c = data.read_shift(4);
    cell.e.c = data.read_shift(4);
    return cell;
  }
  function write_RfX(r, o) {
    if(!o) o = new_buf(16);
    o.write_shift(4, r.s.r);
    o.write_shift(4, r.e.r);
    o.write_shift(4, r.s.c);
    o.write_shift(4, r.e.c);
    return o;
  }

  /* [MS-XLSB] 2.5.153 UncheckedRfX */
  var parse_UncheckedRfX = parse_RfX;
  var write_UncheckedRfX = write_RfX;

  /* [MS-XLS] 2.5.342 ; [MS-XLSB] 2.5.171 */
  /* TODO: error checking, NaN and Infinity values are not valid Xnum */
  function parse_Xnum(data) { return data.read_shift(8, 'f'); }
  function write_Xnum(data, o) { return (o || new_buf(8)).write_shift(8, data, 'f'); }

  /* [MS-XLSB] 2.5.97.2 */
  var BErr = {
    0x00: "#NULL!",
    0x07: "#DIV/0!",
    0x0F: "#VALUE!",
    0x17: "#REF!",
    0x1D: "#NAME?",
    0x24: "#NUM!",
    0x2A: "#N/A",
    0x2B: "#GETTING_DATA",
    0xFF: "#WTF?"
  };
  var RBErr = evert_num(BErr);

  /* [MS-XLSB] 2.4.324 BrtColor */
  function parse_BrtColor(data) {
    var out = {};
    var d = data.read_shift(1);

    //var fValidRGB = d & 1;
    var xColorType = d >>> 1;

    var index = data.read_shift(1);
    var nTS = data.read_shift(2, 'i');
    var bR = data.read_shift(1);
    var bG = data.read_shift(1);
    var bB = data.read_shift(1);
    data.l++; //var bAlpha = data.read_shift(1);

    switch(xColorType) {
      case 0: out.auto = 1; break;
      case 1:
        out.index = index;
        var icv = XLSIcv[index];
        /* automatic pseudo index 81 */
        if(icv) out.rgb = rgb2Hex(icv);
        break;
      case 2:
        /* if(!fValidRGB) throw new Error("invalid"); */
        out.rgb = rgb2Hex([bR, bG, bB]);
        break;
      case 3: out.theme = index; break;
    }
    if(nTS != 0) out.tint = nTS > 0 ? nTS / 32767 : nTS / 32768;

    return out;
  }
  function write_BrtColor(color, o) {
    if(!o) o = new_buf(8);
    if(!color||color.auto) { o.write_shift(4, 0); o.write_shift(4, 0); return o; }
    if(color.index) {
      o.write_shift(1, 0x02);
      o.write_shift(1, color.index);
    } else if(color.theme) {
      o.write_shift(1, 0x06);
      o.write_shift(1, color.theme);
    } else {
      o.write_shift(1, 0x05);
      o.write_shift(1, 0);
    }
    var nTS = color.tint || 0;
    if(nTS > 0) nTS *= 32767;
    else if(nTS < 0) nTS *= 32768;
    o.write_shift(2, nTS);
    if(!color.rgb) {
      o.write_shift(2, 0);
      o.write_shift(1, 0);
      o.write_shift(1, 0);
    } else {
      var rgb = (color.rgb || 'FFFFFF');
      o.write_shift(1, parseInt(rgb.slice(0,2),16));
      o.write_shift(1, parseInt(rgb.slice(2,4),16));
      o.write_shift(1, parseInt(rgb.slice(4,6),16));
      o.write_shift(1, 0xFF);
    }
    return o;
  }

  /* [MS-XLSB] 2.5.52 */
  function parse_FontFlags(data) {
    var d = data.read_shift(1);
    data.l++;
    var out = {
      /* fBold: d & 0x01 */
      fItalic: d & 0x02,
      /* fUnderline: d & 0x04 */
      fStrikeout: d & 0x08,
      fOutline: d & 0x10,
      fShadow: d & 0x20,
      fCondense: d & 0x40,
      fExtend: d & 0x80
    };
    return out;
  }
  function write_FontFlags(font, o) {
    if(!o) o = new_buf(2);
    var grbit =
      (font.italic   ? 0x02 : 0) |
      (font.strike   ? 0x08 : 0) |
      (font.outline  ? 0x10 : 0) |
      (font.shadow   ? 0x20 : 0) |
      (font.condense ? 0x40 : 0) |
      (font.extend   ? 0x80 : 0);
    o.write_shift(1, grbit);
    o.write_shift(1, 0);
    return o;
  }

  /* [MS-OLEDS] 2.3.1 and 2.3.2 */
  function parse_ClipboardFormatOrString(o, w) {
    // $FlowIgnore
    var ClipFmt = {2:"BITMAP",3:"METAFILEPICT",8:"DIB",14:"ENHMETAFILE"};
    var m = o.read_shift(4);
    switch(m) {
      case 0x00000000: return "";
      case 0xffffffff: case 0xfffffffe: return ClipFmt[o.read_shift(4)]||"";
    }
    if(m > 0x190) throw new Error("Unsupported Clipboard: " + m.toString(16));
    o.l -= 4;
    return o.read_shift(0, w == 1 ? "lpstr" : "lpwstr");
  }
  function parse_ClipboardFormatOrAnsiString(o) { return parse_ClipboardFormatOrString(o, 1); }
  function parse_ClipboardFormatOrUnicodeString(o) { return parse_ClipboardFormatOrString(o, 2); }

  /* [MS-OLEPS] 2.2 PropertyType */
//var VT_EMPTY    = 0x0000;
//var VT_NULL     = 0x0001;
  var VT_I2       = 0x0002;
  var VT_I4       = 0x0003;
//var VT_R4       = 0x0004;
//var VT_R8       = 0x0005;
//var VT_CY       = 0x0006;
//var VT_DATE     = 0x0007;
//var VT_BSTR     = 0x0008;
//var VT_ERROR    = 0x000A;
  var VT_BOOL     = 0x000B;
  var VT_VARIANT  = 0x000C;
//var VT_DECIMAL  = 0x000E;
//var VT_I1       = 0x0010;
//var VT_UI1      = 0x0011;
//var VT_UI2      = 0x0012;
  var VT_UI4      = 0x0013;
//var VT_I8       = 0x0014;
//var VT_UI8      = 0x0015;
//var VT_INT      = 0x0016;
//var VT_UINT     = 0x0017;
  var VT_LPSTR    = 0x001E;
//var VT_LPWSTR   = 0x001F;
  var VT_FILETIME = 0x0040;
  var VT_BLOB     = 0x0041;
//var VT_STREAM   = 0x0042;
//var VT_STORAGE  = 0x0043;
//var VT_STREAMED_Object  = 0x0044;
//var VT_STORED_Object    = 0x0045;
//var VT_BLOB_Object      = 0x0046;
  var VT_CF       = 0x0047;
//var VT_CLSID    = 0x0048;
//var VT_VERSIONED_STREAM = 0x0049;
  var VT_VECTOR   = 0x1000;
//var VT_ARRAY    = 0x2000;

  var VT_STRING   = 0x0050; // 2.3.3.1.11 VtString
  var VT_USTR     = 0x0051; // 2.3.3.1.12 VtUnalignedString
  var VT_CUSTOM   = [VT_STRING, VT_USTR];

  /* [MS-OSHARED] 2.3.3.2.2.1 Document Summary Information PIDDSI */
  var DocSummaryPIDDSI = {
    0x01: { n: 'CodePage', t: VT_I2 },
    0x02: { n: 'Category', t: VT_STRING },
    0x03: { n: 'PresentationFormat', t: VT_STRING },
    0x04: { n: 'ByteCount', t: VT_I4 },
    0x05: { n: 'LineCount', t: VT_I4 },
    0x06: { n: 'ParagraphCount', t: VT_I4 },
    0x07: { n: 'SlideCount', t: VT_I4 },
    0x08: { n: 'NoteCount', t: VT_I4 },
    0x09: { n: 'HiddenCount', t: VT_I4 },
    0x0a: { n: 'MultimediaClipCount', t: VT_I4 },
    0x0b: { n: 'ScaleCrop', t: VT_BOOL },
    0x0c: { n: 'HeadingPairs', t: VT_VECTOR | VT_VARIANT },
    0x0d: { n: 'TitlesOfParts', t: VT_VECTOR | VT_LPSTR },
    0x0e: { n: 'Manager', t: VT_STRING },
    0x0f: { n: 'Company', t: VT_STRING },
    0x10: { n: 'LinksUpToDate', t: VT_BOOL },
    0x11: { n: 'CharacterCount', t: VT_I4 },
    0x13: { n: 'SharedDoc', t: VT_BOOL },
    0x16: { n: 'HyperlinksChanged', t: VT_BOOL },
    0x17: { n: 'AppVersion', t: VT_I4, p: 'version' },
    0x18: { n: 'DigSig', t: VT_BLOB },
    0x1A: { n: 'ContentType', t: VT_STRING },
    0x1B: { n: 'ContentStatus', t: VT_STRING },
    0x1C: { n: 'Language', t: VT_STRING },
    0x1D: { n: 'Version', t: VT_STRING },
    0xFF: {}
  };

  /* [MS-OSHARED] 2.3.3.2.1.1 Summary Information Property Set PIDSI */
  var SummaryPIDSI = {
    0x01: { n: 'CodePage', t: VT_I2 },
    0x02: { n: 'Title', t: VT_STRING },
    0x03: { n: 'Subject', t: VT_STRING },
    0x04: { n: 'Author', t: VT_STRING },
    0x05: { n: 'Keywords', t: VT_STRING },
    0x06: { n: 'Comments', t: VT_STRING },
    0x07: { n: 'Template', t: VT_STRING },
    0x08: { n: 'LastAuthor', t: VT_STRING },
    0x09: { n: 'RevNumber', t: VT_STRING },
    0x0A: { n: 'EditTime', t: VT_FILETIME },
    0x0B: { n: 'LastPrinted', t: VT_FILETIME },
    0x0C: { n: 'CreatedDate', t: VT_FILETIME },
    0x0D: { n: 'ModifiedDate', t: VT_FILETIME },
    0x0E: { n: 'PageCount', t: VT_I4 },
    0x0F: { n: 'WordCount', t: VT_I4 },
    0x10: { n: 'CharCount', t: VT_I4 },
    0x11: { n: 'Thumbnail', t: VT_CF },
    0x12: { n: 'Application', t: VT_STRING },
    0x13: { n: 'DocSecurity', t: VT_I4 },
    0xFF: {}
  };

  /* [MS-OLEPS] 2.18 */
  var SpecialProperties = {
    0x80000000: { n: 'Locale', t: VT_UI4 },
    0x80000003: { n: 'Behavior', t: VT_UI4 },
    0x72627262: {}
  };

  (function() {
    for(var y in SpecialProperties) if(SpecialProperties.hasOwnProperty(y))
      DocSummaryPIDDSI[y] = SummaryPIDSI[y] = SpecialProperties[y];
  })();

  var DocSummaryRE = evert_key(DocSummaryPIDDSI, "n");
  var SummaryRE = evert_key(SummaryPIDSI, "n");

  /* [MS-XLS] 2.4.63 Country/Region codes */
  var CountryEnum = {
    0x0001: "US", // United States
    0x0002: "CA", // Canada
    0x0003: "", // Latin America (except Brazil)
    0x0007: "RU", // Russia
    0x0014: "EG", // Egypt
    0x001E: "GR", // Greece
    0x001F: "NL", // Netherlands
    0x0020: "BE", // Belgium
    0x0021: "FR", // France
    0x0022: "ES", // Spain
    0x0024: "HU", // Hungary
    0x0027: "IT", // Italy
    0x0029: "CH", // Switzerland
    0x002B: "AT", // Austria
    0x002C: "GB", // United Kingdom
    0x002D: "DK", // Denmark
    0x002E: "SE", // Sweden
    0x002F: "NO", // Norway
    0x0030: "PL", // Poland
    0x0031: "DE", // Germany
    0x0034: "MX", // Mexico
    0x0037: "BR", // Brazil
    0x003d: "AU", // Australia
    0x0040: "NZ", // New Zealand
    0x0042: "TH", // Thailand
    0x0051: "JP", // Japan
    0x0052: "KR", // Korea
    0x0054: "VN", // Viet Nam
    0x0056: "CN", // China
    0x005A: "TR", // Turkey
    0x0069: "JS", // Ramastan
    0x00D5: "DZ", // Algeria
    0x00D8: "MA", // Morocco
    0x00DA: "LY", // Libya
    0x015F: "PT", // Portugal
    0x0162: "IS", // Iceland
    0x0166: "FI", // Finland
    0x01A4: "CZ", // Czech Republic
    0x0376: "TW", // Taiwan
    0x03C1: "LB", // Lebanon
    0x03C2: "JO", // Jordan
    0x03C3: "SY", // Syria
    0x03C4: "IQ", // Iraq
    0x03C5: "KW", // Kuwait
    0x03C6: "SA", // Saudi Arabia
    0x03CB: "AE", // United Arab Emirates
    0x03CC: "IL", // Israel
    0x03CE: "QA", // Qatar
    0x03D5: "IR", // Iran
    0xFFFF: "US"  // United States
  };

  /* [MS-XLS] 2.5.127 */
  var XLSFillPattern = [
    null,
    'solid',
    'mediumGray',
    'darkGray',
    'lightGray',
    'darkHorizontal',
    'darkVertical',
    'darkDown',
    'darkUp',
    'darkGrid',
    'darkTrellis',
    'lightHorizontal',
    'lightVertical',
    'lightDown',
    'lightUp',
    'lightGrid',
    'lightTrellis',
    'gray125',
    'gray0625'
  ];

  function rgbify(arr) { return arr.map(function(x) { return [(x>>16)&255,(x>>8)&255,x&255]; }); }

  /* [MS-XLS] 2.5.161 */
  /* [MS-XLSB] 2.5.75 Icv */
  var XLSIcv = rgbify([
    /* Color Constants */
    0x000000,
    0xFFFFFF,
    0xFF0000,
    0x00FF00,
    0x0000FF,
    0xFFFF00,
    0xFF00FF,
    0x00FFFF,

    /* Overridable Defaults */
    0x000000,
    0xFFFFFF,
    0xFF0000,
    0x00FF00,
    0x0000FF,
    0xFFFF00,
    0xFF00FF,
    0x00FFFF,

    0x800000,
    0x008000,
    0x000080,
    0x808000,
    0x800080,
    0x008080,
    0xC0C0C0,
    0x808080,
    0x9999FF,
    0x993366,
    0xFFFFCC,
    0xCCFFFF,
    0x660066,
    0xFF8080,
    0x0066CC,
    0xCCCCFF,

    0x000080,
    0xFF00FF,
    0xFFFF00,
    0x00FFFF,
    0x800080,
    0x800000,
    0x008080,
    0x0000FF,
    0x00CCFF,
    0xCCFFFF,
    0xCCFFCC,
    0xFFFF99,
    0x99CCFF,
    0xFF99CC,
    0xCC99FF,
    0xFFCC99,

    0x3366FF,
    0x33CCCC,
    0x99CC00,
    0xFFCC00,
    0xFF9900,
    0xFF6600,
    0x666699,
    0x969696,
    0x003366,
    0x339966,
    0x003300,
    0x333300,
    0x993300,
    0x993366,
    0x333399,
    0x333333,

    /* Other entries to appease BIFF8/12 */
    0xFFFFFF, /* 0x40 icvForeground ?? */
    0x000000, /* 0x41 icvBackground ?? */
    0x000000, /* 0x42 icvFrame ?? */
    0x000000, /* 0x43 icv3D ?? */
    0x000000, /* 0x44 icv3DText ?? */
    0x000000, /* 0x45 icv3DHilite ?? */
    0x000000, /* 0x46 icv3DShadow ?? */
    0x000000, /* 0x47 icvHilite ?? */
    0x000000, /* 0x48 icvCtlText ?? */
    0x000000, /* 0x49 icvCtlScrl ?? */
    0x000000, /* 0x4A icvCtlInv ?? */
    0x000000, /* 0x4B icvCtlBody ?? */
    0x000000, /* 0x4C icvCtlFrame ?? */
    0x000000, /* 0x4D icvCtlFore ?? */
    0x000000, /* 0x4E icvCtlBack ?? */
    0x000000, /* 0x4F icvCtlNeutral */
    0x000000, /* 0x50 icvInfoBk ?? */
    0x000000 /* 0x51 icvInfoText ?? */
  ]);

  /* Parts enumerated in OPC spec, MS-XLSB and MS-XLSX */
  /* 12.3 Part Summary <SpreadsheetML> */
  /* 14.2 Part Summary <DrawingML> */
  /* [MS-XLSX] 2.1 Part Enumerations ; [MS-XLSB] 2.1.7 Part Enumeration */
  var ct2type/*{[string]:string}*/ = ({
    /* Workbook */
    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml": "workbooks",

    /* Worksheet */
    "application/vnd.ms-excel.binIndexWs": "TODO", /* Binary Index */

    /* Macrosheet */
    "application/vnd.ms-excel.intlmacrosheet": "TODO",
    "application/vnd.ms-excel.binIndexMs": "TODO", /* Binary Index */

    /* File Properties */
    "application/vnd.openxmlformats-package.core-properties+xml": "coreprops",
    "application/vnd.openxmlformats-officedocument.custom-properties+xml": "custprops",
    "application/vnd.openxmlformats-officedocument.extended-properties+xml": "extprops",

    /* Custom Data Properties */
    "application/vnd.openxmlformats-officedocument.customXmlProperties+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.customProperty": "TODO",

    /* PivotTable */
    "application/vnd.ms-excel.pivotTable": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.pivotTable+xml": "TODO",

    /* Chart Colors */
    "application/vnd.ms-office.chartcolorstyle+xml": "TODO",

    /* Chart Style */
    "application/vnd.ms-office.chartstyle+xml": "TODO",

    /* Calculation Chain */
    "application/vnd.ms-excel.calcChain": "calcchains",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml": "calcchains",

    /* Printer Settings */
    "application/vnd.openxmlformats-officedocument.spreadsheetml.printerSettings": "TODO",

    /* ActiveX */
    "application/vnd.ms-office.activeX": "TODO",
    "application/vnd.ms-office.activeX+xml": "TODO",

    /* Custom Toolbars */
    "application/vnd.ms-excel.attachedToolbars": "TODO",

    /* External Data Connections */
    "application/vnd.ms-excel.connections": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.connections+xml": "TODO",

    /* External Links */
    "application/vnd.ms-excel.externalLink": "links",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.externalLink+xml": "links",

    /* Metadata */
    "application/vnd.ms-excel.sheetMetadata": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml": "TODO",

    /* PivotCache */
    "application/vnd.ms-excel.pivotCacheDefinition": "TODO",
    "application/vnd.ms-excel.pivotCacheRecords": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheDefinition+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheRecords+xml": "TODO",

    /* Query Table */
    "application/vnd.ms-excel.queryTable": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.queryTable+xml": "TODO",

    /* Shared Workbook */
    "application/vnd.ms-excel.userNames": "TODO",
    "application/vnd.ms-excel.revisionHeaders": "TODO",
    "application/vnd.ms-excel.revisionLog": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.revisionHeaders+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.revisionLog+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.userNames+xml": "TODO",

    /* Single Cell Table */
    "application/vnd.ms-excel.tableSingleCells": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.tableSingleCells+xml": "TODO",

    /* Slicer */
    "application/vnd.ms-excel.slicer": "TODO",
    "application/vnd.ms-excel.slicerCache": "TODO",
    "application/vnd.ms-excel.slicer+xml": "TODO",
    "application/vnd.ms-excel.slicerCache+xml": "TODO",

    /* Sort Map */
    "application/vnd.ms-excel.wsSortMap": "TODO",

    /* Table */
    "application/vnd.ms-excel.table": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.table+xml": "TODO",

    /* Themes */
    "application/vnd.openxmlformats-officedocument.theme+xml": "themes",

    /* Theme Override */
    "application/vnd.openxmlformats-officedocument.themeOverride+xml": "TODO",

    /* Timeline */
    "application/vnd.ms-excel.Timeline+xml": "TODO", /* verify */
    "application/vnd.ms-excel.TimelineCache+xml": "TODO", /* verify */

    /* VBA */
    "application/vnd.ms-office.vbaProject": "vba",
    "application/vnd.ms-office.vbaProjectSignature": "vba",

    /* Volatile Dependencies */
    "application/vnd.ms-office.volatileDependencies": "TODO",
    "application/vnd.openxmlformats-officedocument.spreadsheetml.volatileDependencies+xml": "TODO",

    /* Control Properties */
    "application/vnd.ms-excel.controlproperties+xml": "TODO",

    /* Data Model */
    "application/vnd.openxmlformats-officedocument.model+data": "TODO",

    /* Survey */
    "application/vnd.ms-excel.Survey+xml": "TODO",

    /* Drawing */
    "application/vnd.openxmlformats-officedocument.drawing+xml": "drawings",
    "application/vnd.openxmlformats-officedocument.drawingml.chart+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.drawingml.chartshapes+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.drawingml.diagramColors+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.drawingml.diagramData+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.drawingml.diagramLayout+xml": "TODO",
    "application/vnd.openxmlformats-officedocument.drawingml.diagramStyle+xml": "TODO",

    /* VML */
    "application/vnd.openxmlformats-officedocument.vmlDrawing": "TODO",

    "application/vnd.openxmlformats-package.relationships+xml": "rels",
    "application/vnd.openxmlformats-officedocument.oleObject": "TODO",

    /* Image */
    "image/png": "TODO",

    "sheet": "js"
  });

  var CT_LIST = (function(){
    var o = {
      workbooks: {
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml",
        xlsm: "application/vnd.ms-excel.sheet.macroEnabled.main+xml",
        xlsb: "application/vnd.ms-excel.sheet.binary.macroEnabled.main",
        xlam: "application/vnd.ms-excel.addin.macroEnabled.main+xml",
        xltx: "application/vnd.openxmlformats-officedocument.spreadsheetml.template.main+xml"
      },
      strs: { /* Shared Strings */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
        xlsb: "application/vnd.ms-excel.sharedStrings"
      },
      comments: { /* Comments */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
        xlsb: "application/vnd.ms-excel.comments"
      },
      sheets: { /* Worksheet */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
        xlsb: "application/vnd.ms-excel.worksheet"
      },
      charts: { /* Chartsheet */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
        xlsb: "application/vnd.ms-excel.chartsheet"
      },
      dialogs: { /* Dialogsheet */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
        xlsb: "application/vnd.ms-excel.dialogsheet"
      },
      macros: { /* Macrosheet (Excel 4.0 Macros) */
        xlsx: "application/vnd.ms-excel.macrosheet+xml",
        xlsb: "application/vnd.ms-excel.macrosheet"
      },
      styles: { /* Styles */
        xlsx: "application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
        xlsb: "application/vnd.ms-excel.styles"
      }
    };
    keys(o).forEach(function(k) { ["xlsm", "xlam"].forEach(function(v) { if(!o[k][v]) o[k][v] = o[k].xlsx; }); });
    keys(o).forEach(function(k){ keys(o[k]).forEach(function(v) { ct2type[o[k][v]] = k; }); });
    return o;
  })();

  var type2ct/*{[string]:Array<string>}*/ = evert_arr(ct2type);

  XMLNS.CT = 'http://schemas.openxmlformats.org/package/2006/content-types';

  function new_ct() {
    return ({
      workbooks:[], sheets:[], charts:[], dialogs:[], macros:[],
      rels:[], strs:[], comments:[], links:[],
      coreprops:[], extprops:[], custprops:[], themes:[], styles:[],
      calcchains:[], vba: [], drawings: [],
      TODO:[], xmlns: "" });
  }

  function parse_ct(data) {
    var ct = new_ct();
    if(!data || !data.match) return ct;
    var ctext = {};
    (data.match(tagregex)||[]).forEach(function(x) {
      var y = parsexmltag(x);
      switch(y[0].replace(nsregex,"<")) {
        case '<?xml': break;
        case '<Types': ct.xmlns = y['xmlns' + (y[0].match(/<(\w+):/)||["",""])[1] ]; break;
        case '<Default': ctext[y.Extension] = y.ContentType; break;
        case '<Override':
          if(ct[ct2type[y.ContentType]] !== undefined) ct[ct2type[y.ContentType]].push(y.PartName);
          break;
      }
    });
    if(ct.xmlns !== XMLNS.CT) throw new Error("Unknown Namespace: " + ct.xmlns);
    ct.calcchain = ct.calcchains.length > 0 ? ct.calcchains[0] : "";
    ct.sst = ct.strs.length > 0 ? ct.strs[0] : "";
    ct.style = ct.styles.length > 0 ? ct.styles[0] : "";
    ct.defaults = ctext;
    delete ct.calcchains;
    return ct;
  }

  var CTYPE_XML_ROOT = writextag('Types', null, {
    'xmlns': XMLNS.CT,
    'xmlns:xsd': XMLNS.xsd,
    'xmlns:xsi': XMLNS.xsi
  });

  var CTYPE_DEFAULTS = [
    ['xml', 'application/xml'],
    ['bin', 'application/vnd.ms-excel.sheet.binary.macroEnabled.main'],
    ['vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing'],
    /* from test files */
    ['bmp', 'image/bmp'],
    ['png', 'image/png'],
    ['gif', 'image/gif'],
    ['emf', 'image/x-emf'],
    ['wmf', 'image/x-wmf'],
    ['jpg', 'image/jpeg'], ['jpeg', 'image/jpeg'],
    ['tif', 'image/tiff'], ['tiff', 'image/tiff'],
    ['pdf', 'application/pdf'],
    ['rels', type2ct.rels[0]]
  ].map(function(x) {
    return writextag('Default', null, {'Extension':x[0], 'ContentType': x[1]});
  });

  function write_ct(ct, opts) {
    var o = [], v;
    o[o.length] = (XML_HEADER);
    o[o.length] = (CTYPE_XML_ROOT);
    o = o.concat(CTYPE_DEFAULTS);
    var f1 = function(w) {
      if(ct[w] && ct[w].length > 0) {
        v = ct[w][0];
        o[o.length] = (writextag('Override', null, {
          'PartName': (v[0] == '/' ? "":"/") + v,
          'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
        }));
      }
    };
    var f2 = function(w) {
      (ct[w]||[]).forEach(function(v) {
        o[o.length] = (writextag('Override', null, {
          'PartName': (v[0] == '/' ? "":"/") + v,
          'ContentType': CT_LIST[w][opts.bookType || 'xlsx']
        }));
      });
    };
    var f3 = function(t) {
      (ct[t]||[]).forEach(function(v) {
        o[o.length] = (writextag('Override', null, {
          'PartName': (v[0] == '/' ? "":"/") + v,
          'ContentType': type2ct[t][0]
        }));
      });
    };
    f1('workbooks');
    f2('sheets');
    f2('charts');
    f3('themes');
    ['strs', 'styles'].forEach(f1);
    ['coreprops', 'extprops', 'custprops'].forEach(f3);
    f3('vba');
    f3('comments');
    f3('drawings');
    if(o.length>2){ o[o.length] = ('</Types>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* 9.3 Relationships */
  var RELS = ({
    WB: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
    SHEET: "http://sheetjs.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
    HLINK: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink",
    VML: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing",
    VBA: "http://schemas.microsoft.com/office/2006/relationships/vbaProject"
  });

  /* 9.3.3 Representing Relationships */
  function get_rels_path(file) {
    var n = file.lastIndexOf("/");
    return file.slice(0,n+1) + '_rels/' + file.slice(n+1) + ".rels";
  }

  function parse_rels(data, currentFilePath) {
    if (!data) return data;
    if (currentFilePath.charAt(0) !== '/') {
      currentFilePath = '/'+currentFilePath;
    }
    var rels = {};
    var hash = {};

    (data.match(tagregex)||[]).forEach(function(x) {
      var y = parsexmltag(x);
      /* 9.3.2.2 OPC_Relationships */
      if (y[0] === '<Relationship') {
        var rel = {}; rel.Type = y.Type; rel.Target = y.Target; rel.Id = y.Id; rel.TargetMode = y.TargetMode;
        var canonictarget = y.TargetMode === 'External' ? y.Target : resolve_path(y.Target, currentFilePath);
        rels[canonictarget] = rel;
        hash[y.Id] = rel;
      }
    });
    rels["!id"] = hash;
    return rels;
  }

  XMLNS.RELS = 'http://schemas.openxmlformats.org/package/2006/relationships';

  var RELS_ROOT = writextag('Relationships', null, {
    //'xmlns:ns0': XMLNS.RELS,
    'xmlns': XMLNS.RELS
  });

  /* TODO */
  function write_rels(rels) {
    var o = [XML_HEADER, RELS_ROOT];
    keys(rels['!id']).forEach(function(rid) {
      o[o.length] = (writextag('Relationship', null, rels['!id'][rid]));
    });
    if(o.length>2){ o[o.length] = ('</Relationships>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }

  function add_rels(rels, rId, f, type, relobj) {
    if(!relobj) relobj = {};
    if(!rels['!id']) rels['!id'] = {};
    if(rId < 0) for(rId = 1; rels['!id']['rId' + rId]; ++rId){/* empty */}
    relobj.Id = 'rId' + rId;
    relobj.Type = type;
    relobj.Target = f;
    if(relobj.Type == RELS.HLINK) relobj.TargetMode = "External";
    if(rels['!id'][relobj.Id]) throw new Error("Cannot rewrite rId " + rId);
    rels['!id'][relobj.Id] = relobj;
    rels[('/' + relobj.Target).replace("//","/")] = relobj;
    return rId;
  }
  /* Open Document Format for Office Applications (OpenDocument) Version 1.2 */
  /* Part 3 Section 4 Manifest File */
  var CT_ODS = "application/vnd.oasis.opendocument.spreadsheet";
  function parse_manifest(d, opts) {
    var str = xlml_normalize(d);
    var Rn;
    var FEtag;
    while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
      case 'manifest': break; // 4.2 <manifest:manifest>
      case 'file-entry': // 4.3 <manifest:file-entry>
        FEtag = parsexmltag(Rn[0], false);
        if(FEtag.path == '/' && FEtag.type !== CT_ODS) throw new Error("This OpenDocument is not a spreadsheet");
        break;
      case 'encryption-data': // 4.4 <manifest:encryption-data>
      case 'algorithm': // 4.5 <manifest:algorithm>
      case 'start-key-generation': // 4.6 <manifest:start-key-generation>
      case 'key-derivation': // 4.7 <manifest:key-derivation>
        throw new Error("Unsupported ODS Encryption");
      default: if(opts && opts.WTF) throw Rn;
    }
  }

  function write_manifest(manifest) {
    var o = [XML_HEADER];
    o.push('<manifest:manifest xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0" manifest:version="1.2">\n');
    o.push('  <manifest:file-entry manifest:full-path="/" manifest:version="1.2" manifest:media-type="application/vnd.oasis.opendocument.spreadsheet"/>\n');
    for(var i = 0; i < manifest.length; ++i) o.push('  <manifest:file-entry manifest:full-path="' + manifest[i][0] + '" manifest:media-type="' + manifest[i][1] + '"/>\n');
    o.push('</manifest:manifest>');
    return o.join("");
  }

  /* Part 3 Section 6 Metadata Manifest File */
  function write_rdf_type(file, res, tag) {
    return [
      '  <rdf:Description rdf:about="' + file + '">\n',
      '    <rdf:type rdf:resource="http://docs.oasis-open.org/ns/office/1.2/meta/' + (tag || "odf") + '#' + res + '"/>\n',
      '  </rdf:Description>\n'
    ].join("");
  }
  function write_rdf_has(base, file) {
    return [
      '  <rdf:Description rdf:about="' + base + '">\n',
      '    <ns0:hasPart xmlns:ns0="http://docs.oasis-open.org/ns/office/1.2/meta/pkg#" rdf:resource="' + file + '"/>\n',
      '  </rdf:Description>\n'
    ].join("");
  }
  function write_rdf(rdf) {
    var o = [XML_HEADER];
    o.push('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n');
    for(var i = 0; i != rdf.length; ++i) {
      o.push(write_rdf_type(rdf[i][0], rdf[i][1]));
      o.push(write_rdf_has("",rdf[i][0]));
    }
    o.push(write_rdf_type("","Document", "pkg"));
    o.push('</rdf:RDF>');
    return o.join("");
  }
  /* TODO: pull properties */
  var write_meta_ods = (function() {
    var payload = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><office:document-meta xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xlink="http://www.w3.org/1999/xlink" office:version="1.2"><office:meta><meta:generator>Sheet' + 'JS ' + XLSX.version + '</meta:generator></office:meta></office:document-meta>';
    return function wmo() {
      return payload;
    };
  })();

  /* ECMA-376 Part II 11.1 Core Properties Part */
  /* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
  var CORE_PROPS = [
    ["cp:category", "Category"],
    ["cp:contentStatus", "ContentStatus"],
    ["cp:keywords", "Keywords"],
    ["cp:lastModifiedBy", "LastAuthor"],
    ["cp:lastPrinted", "LastPrinted"],
    ["cp:revision", "RevNumber"],
    ["cp:version", "Version"],
    ["dc:creator", "Author"],
    ["dc:description", "Comments"],
    ["dc:identifier", "Identifier"],
    ["dc:language", "Language"],
    ["dc:subject", "Subject"],
    ["dc:title", "Title"],
    ["dcterms:created", "CreatedDate", 'date'],
    ["dcterms:modified", "ModifiedDate", 'date']
  ];

  XMLNS.CORE_PROPS = "http://schemas.openxmlformats.org/package/2006/metadata/core-properties";
  RELS.CORE_PROPS  = 'http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties';

  var CORE_PROPS_REGEX = (function() {
    var r = new Array(CORE_PROPS.length);
    for(var i = 0; i < CORE_PROPS.length; ++i) {
      var f = CORE_PROPS[i];
      var g = "(?:"+ f[0].slice(0,f[0].indexOf(":")) +":)"+ f[0].slice(f[0].indexOf(":")+1);
      r[i] = new RegExp("<" + g + "[^>]*>([\\s\\S]*?)<\/" + g + ">");
    }
    return r;
  })();

  function parse_core_props(data) {
    var p = {};
    data = utf8read(data);

    for(var i = 0; i < CORE_PROPS.length; ++i) {
      var f = CORE_PROPS[i], cur = data.match(CORE_PROPS_REGEX[i]);
      if(cur != null && cur.length > 0) p[f[1]] = cur[1];
      if(f[2] === 'date' && p[f[1]]) p[f[1]] = parseDate(p[f[1]]);
    }

    return p;
  }

  var CORE_PROPS_XML_ROOT = writextag('cp:coreProperties', null, {
    //'xmlns': XMLNS.CORE_PROPS,
    'xmlns:cp': XMLNS.CORE_PROPS,
    'xmlns:dc': XMLNS.dc,
    'xmlns:dcterms': XMLNS.dcterms,
    'xmlns:dcmitype': XMLNS.dcmitype,
    'xmlns:xsi': XMLNS.xsi
  });

  function cp_doit(f, g, h, o, p) {
    if(p[f] != null || g == null || g === "") return;
    p[f] = g;
    o[o.length] = (h ? writextag(f,g,h) : writetag(f,g));
  }

  function write_core_props(cp, _opts) {
    var opts = _opts || {};
    var o = [XML_HEADER, CORE_PROPS_XML_ROOT], p = {};
    if(!cp && !opts.Props) return o.join("");

    if(cp) {
      if(cp.CreatedDate != null) cp_doit("dcterms:created", typeof cp.CreatedDate === "string" ? cp.CreatedDate : write_w3cdtf(cp.CreatedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
      if(cp.ModifiedDate != null) cp_doit("dcterms:modified", typeof cp.ModifiedDate === "string" ? cp.ModifiedDate : write_w3cdtf(cp.ModifiedDate, opts.WTF), {"xsi:type":"dcterms:W3CDTF"}, o, p);
    }

    for(var i = 0; i != CORE_PROPS.length; ++i) {
      var f = CORE_PROPS[i];
      var v = opts.Props && opts.Props[f[1]] != null ? opts.Props[f[1]] : cp ? cp[f[1]] : null;
      if(v === true) v = "1";
      else if(v === false) v = "0";
      else if(typeof v == "number") v = String(v);
      if(v != null) cp_doit(f[0], v, null, o, p);
    }
    if(o.length>2){ o[o.length] = ('</cp:coreProperties>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* 15.2.12.3 Extended File Properties Part */
  /* [MS-OSHARED] 2.3.3.2.[1-2].1 (PIDSI/PIDDSI) */
  var EXT_PROPS = [
    ["Application", "Application", "string"],
    ["AppVersion", "AppVersion", "string"],
    ["Company", "Company", "string"],
    ["DocSecurity", "DocSecurity", "string"],
    ["Manager", "Manager", "string"],
    ["HyperlinksChanged", "HyperlinksChanged", "bool"],
    ["SharedDoc", "SharedDoc", "bool"],
    ["LinksUpToDate", "LinksUpToDate", "bool"],
    ["ScaleCrop", "ScaleCrop", "bool"],
    ["HeadingPairs", "HeadingPairs", "raw"],
    ["TitlesOfParts", "TitlesOfParts", "raw"]
  ];

  XMLNS.EXT_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/extended-properties";
  RELS.EXT_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties';

  var PseudoPropsPairs = [
    "Worksheets",  "SheetNames",
    "NamedRanges", "DefinedNames",
    "Chartsheets", "ChartNames"
  ];
  function load_props_pairs(HP, TOP, props, opts) {
    var v = [];
    if(typeof HP == "string") v = parseVector(HP, opts);
    else for(var j = 0; j < HP.length; ++j) v = v.concat(HP[j].map(function(hp) { return {v:hp}; }));
    var parts = (typeof TOP == "string") ? parseVector(TOP, opts).map(function (x) { return x.v; }) : TOP;
    var idx = 0, len = 0;
    if(parts.length > 0) for(var i = 0; i !== v.length; i += 2) {
      len = +(v[i+1].v);
      switch(v[i].v) {
        case "Worksheets":
        case "工作表":
        case "Листы":
        case "أوراق العمل":
        case "ワークシート":
        case "גליונות עבודה":
        case "Arbeitsblätter":
        case "Çalışma Sayfaları":
        case "Feuilles de calcul":
        case "Fogli di lavoro":
        case "Folhas de cálculo":
        case "Planilhas":
        case "Regneark":
        case "Werkbladen":
          props.Worksheets = len;
          props.SheetNames = parts.slice(idx, idx + len);
          break;

        case "Named Ranges":
        case "名前付き一覧":
        case "Benannte Bereiche":
        case "Navngivne områder":
          props.NamedRanges = len;
          props.DefinedNames = parts.slice(idx, idx + len);
          break;

        case "Charts":
        case "Diagramme":
          props.Chartsheets = len;
          props.ChartNames = parts.slice(idx, idx + len);
          break;
      }
      idx += len;
    }
  }

  function parse_ext_props(data, p, opts) {
    var q = {}; if(!p) p = {};
    data = utf8read(data);

    EXT_PROPS.forEach(function(f) {
      switch(f[2]) {
        case "string": p[f[1]] = (data.match(matchtag(f[0]))||[])[1]; break;
        case "bool": p[f[1]] = (data.match(matchtag(f[0]))||[])[1] === "true"; break;
        case "raw":
          var cur = data.match(new RegExp("<" + f[0] + "[^>]*>([\\s\\S]*?)<\/" + f[0] + ">"));
          if(cur && cur.length > 0) q[f[1]] = cur[1];
          break;
      }
    });

    if(q.HeadingPairs && q.TitlesOfParts) load_props_pairs(q.HeadingPairs, q.TitlesOfParts, p, opts);

    return p;
  }

  var EXT_PROPS_XML_ROOT = writextag('Properties', null, {
    'xmlns': XMLNS.EXT_PROPS,
    'xmlns:vt': XMLNS.vt
  });

  function write_ext_props(cp) {
    var o = [], W = writextag;
    if(!cp) cp = {};
    cp.Application = "SheetJS";
    o[o.length] = (XML_HEADER);
    o[o.length] = (EXT_PROPS_XML_ROOT);

    EXT_PROPS.forEach(function(f) {
      if(cp[f[1]] === undefined) return;
      var v;
      switch(f[2]) {
        case 'string': v = String(cp[f[1]]); break;
        case 'bool': v = cp[f[1]] ? 'true' : 'false'; break;
      }
      if(v !== undefined) o[o.length] = (W(f[0], v));
    });

    /* TODO: HeadingPairs, TitlesOfParts */
    o[o.length] = (W('HeadingPairs', W('vt:vector', W('vt:variant', '<vt:lpstr>Worksheets</vt:lpstr>')+W('vt:variant', W('vt:i4', String(cp.Worksheets))), {size:2, baseType:"variant"})));
    o[o.length] = (W('TitlesOfParts', W('vt:vector', cp.SheetNames.map(function(s) { return "<vt:lpstr>" + escapexml(s) + "</vt:lpstr>"; }).join(""), {size: cp.Worksheets, baseType:"lpstr"})));
    if(o.length>2){ o[o.length] = ('</Properties>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* 15.2.12.2 Custom File Properties Part */
  XMLNS.CUST_PROPS = "http://schemas.openxmlformats.org/officeDocument/2006/custom-properties";
  RELS.CUST_PROPS  = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties';

  var custregex = /<[^>]+>[^<]*/g;
  function parse_cust_props(data, opts) {
    var p = {}, name = "";
    var m = data.match(custregex);
    if(m) for(var i = 0; i != m.length; ++i) {
      var x = m[i], y = parsexmltag(x);
      switch(y[0]) {
        case '<?xml': break;
        case '<Properties': break;
        case '<property': name = y.name; break;
        case '</property>': name = null; break;
        default: if (x.indexOf('<vt:') === 0) {
          var toks = x.split('>');
          var type = toks[0].slice(4), text = toks[1];
          /* 22.4.2.32 (CT_Variant). Omit the binary types from 22.4 (Variant Types) */
          switch(type) {
            case 'lpstr': case 'bstr': case 'lpwstr':
              p[name] = unescapexml(text);
              break;
            case 'bool':
              p[name] = parsexmlbool(text);
              break;
            case 'i1': case 'i2': case 'i4': case 'i8': case 'int': case 'uint':
              p[name] = parseInt(text, 10);
              break;
            case 'r4': case 'r8': case 'decimal':
              p[name] = parseFloat(text);
              break;
            case 'filetime': case 'date':
              p[name] = parseDate(text);
              break;
            case 'cy': case 'error':
              p[name] = unescapexml(text);
              break;
            default:
              if(type.slice(-1) == '/') break;
              if(opts.WTF && typeof console !== 'undefined') console.warn('Unexpected', x, type, toks);
          }
        } else if(x.slice(0,2) === "</") {/* empty */
        } else if(opts.WTF) throw new Error(x);
      }
    }
    return p;
  }

  var CUST_PROPS_XML_ROOT = writextag('Properties', null, {
    'xmlns': XMLNS.CUST_PROPS,
    'xmlns:vt': XMLNS.vt
  });

  function write_cust_props(cp) {
    var o = [XML_HEADER, CUST_PROPS_XML_ROOT];
    if(!cp) return o.join("");
    var pid = 1;
    keys(cp).forEach(function custprop(k) { ++pid;
      o[o.length] = (writextag('property', write_vt(cp[k]), {
        'fmtid': '{D5CDD505-2E9C-101B-9397-08002B2CF9AE}',
        'pid': pid,
        'name': k
      }));
    });
    if(o.length>2){ o[o.length] = '</Properties>'; o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* Common Name -> XLML Name */
  var XLMLDocPropsMap = {
    Title: 'Title',
    Subject: 'Subject',
    Author: 'Author',
    Keywords: 'Keywords',
    Comments: 'Description',
    LastAuthor: 'LastAuthor',
    RevNumber: 'Revision',
    Application: 'AppName',
    /* TotalTime: 'TotalTime', */
    LastPrinted: 'LastPrinted',
    CreatedDate: 'Created',
    ModifiedDate: 'LastSaved',
    /* Pages */
    /* Words */
    /* Characters */
    Category: 'Category',
    /* PresentationFormat */
    Manager: 'Manager',
    Company: 'Company',
    /* Guid */
    /* HyperlinkBase */
    /* Bytes */
    /* Lines */
    /* Paragraphs */
    /* CharactersWithSpaces */
    AppVersion: 'Version',

    ContentStatus: 'ContentStatus', /* NOTE: missing from schema */
    Identifier: 'Identifier', /* NOTE: missing from schema */
    Language: 'Language' /* NOTE: missing from schema */
  };
  var evert_XLMLDPM = evert(XLMLDocPropsMap);

  function xlml_set_prop(Props, tag, val) {
    tag = evert_XLMLDPM[tag] || tag;
    Props[tag] = val;
  }

  function xlml_write_docprops(Props, opts) {
    var o = [];
    keys(XLMLDocPropsMap).map(function(m) {
      for(var i = 0; i < CORE_PROPS.length; ++i) if(CORE_PROPS[i][1] == m) return CORE_PROPS[i];
      for(i = 0; i < EXT_PROPS.length; ++i) if(EXT_PROPS[i][1] == m) return EXT_PROPS[i];
      throw m;
    }).forEach(function(p) {
      if(Props[p[1]] == null) return;
      var m = opts && opts.Props && opts.Props[p[1]] != null ? opts.Props[p[1]] : Props[p[1]];
      switch(p[2]) {
        case 'date': m = new Date(m).toISOString().replace(/\.\d*Z/,"Z"); break;
      }
      if(typeof m == 'number') m = String(m);
      else if(m === true || m === false) { m = m ? "1" : "0"; }
      else if(m instanceof Date) m = new Date(m).toISOString().replace(/\.\d*Z/,"");
      o.push(writetag(XLMLDocPropsMap[p[1]] || p[1], m));
    });
    return writextag('DocumentProperties', o.join(""), {xmlns:XLMLNS.o });
  }
  function xlml_write_custprops(Props, Custprops) {
    var BLACKLIST = ["Worksheets","SheetNames"];
    var T = 'CustomDocumentProperties';
    var o = [];
    if(Props) keys(Props).forEach(function(k) {
      if(!Props.hasOwnProperty(k)) return;
      for(var i = 0; i < CORE_PROPS.length; ++i) if(k == CORE_PROPS[i][1]) return;
      for(i = 0; i < EXT_PROPS.length; ++i) if(k == EXT_PROPS[i][1]) return;
      for(i = 0; i < BLACKLIST.length; ++i) if(k == BLACKLIST[i]) return;

      var m = Props[k];
      var t = "string";
      if(typeof m == 'number') { t = "float"; m = String(m); }
      else if(m === true || m === false) { t = "boolean"; m = m ? "1" : "0"; }
      else m = String(m);
      o.push(writextag(escapexmltag(k), m, {"dt:dt":t}));
    });
    if(Custprops) keys(Custprops).forEach(function(k) {
      if(!Custprops.hasOwnProperty(k)) return;
      if(Props && Props.hasOwnProperty(k)) return;
      var m = Custprops[k];
      var t = "string";
      if(typeof m == 'number') { t = "float"; m = String(m); }
      else if(m === true || m === false) { t = "boolean"; m = m ? "1" : "0"; }
      else if(m instanceof Date) { t = "dateTime.tz"; m = m.toISOString(); }
      else m = String(m);
      o.push(writextag(escapexmltag(k), m, {"dt:dt":t}));
    });
    return '<' + T + ' xmlns="' + XLMLNS.o + '">' + o.join("") + '</' + T + '>';
  }
  /* [MS-DTYP] 2.3.3 FILETIME */
  /* [MS-OLEDS] 2.1.3 FILETIME (Packet Version) */
  /* [MS-OLEPS] 2.8 FILETIME (Packet Version) */
  function parse_FILETIME(blob) {
    var dwLowDateTime = blob.read_shift(4), dwHighDateTime = blob.read_shift(4);
    return new Date(((dwHighDateTime/1e7*Math.pow(2,32) + dwLowDateTime/1e7) - 11644473600)*1000).toISOString().replace(/\.000/,"");
  }
  function write_FILETIME(time) {
    var date = (typeof time == "string") ? new Date(Date.parse(time)) : time;
    var t = date.getTime() / 1000 + 11644473600;
    var l = t % Math.pow(2,32), h = (t - l) / Math.pow(2,32);
    l *= 1e7; h *= 1e7;
    var w = (l / Math.pow(2,32)) | 0;
    if(w > 0) { l = l % Math.pow(2,32); h += w; }
    var o = new_buf(8); o.write_shift(4, l); o.write_shift(4, h); return o;
  }

  /* [MS-OSHARED] 2.3.3.1.4 Lpstr */
  function parse_lpstr(blob, type, pad) {
    var start = blob.l;
    var str = blob.read_shift(0, 'lpstr-cp');
    if(pad) while((blob.l - start) & 3) ++blob.l;
    return str;
  }

  /* [MS-OSHARED] 2.3.3.1.6 Lpwstr */
  function parse_lpwstr(blob, type, pad) {
    var str = blob.read_shift(0, 'lpwstr');
    if(pad) blob.l += (4 - ((str.length+1) & 3)) & 3;
    return str;
  }


  /* [MS-OSHARED] 2.3.3.1.11 VtString */
  /* [MS-OSHARED] 2.3.3.1.12 VtUnalignedString */
  function parse_VtStringBase(blob, stringType, pad) {
    if(stringType === 0x1F /*VT_LPWSTR*/) return parse_lpwstr(blob);
    return parse_lpstr(blob, stringType, pad);
  }

  function parse_VtString(blob, t, pad) { return parse_VtStringBase(blob, t, pad === false ? 0: 4); }
  function parse_VtUnalignedString(blob, t) { if(!t) throw new Error("VtUnalignedString must have positive length"); return parse_VtStringBase(blob, t, 0); }

  /* [MS-OSHARED] 2.3.3.1.9 VtVecUnalignedLpstrValue */
  function parse_VtVecUnalignedLpstrValue(blob) {
    var length = blob.read_shift(4);
    var ret = [];
    for(var i = 0; i != length; ++i) ret[i] = blob.read_shift(0, 'lpstr-cp').replace(chr0,'');
    return ret;
  }

  /* [MS-OSHARED] 2.3.3.1.10 VtVecUnalignedLpstr */
  function parse_VtVecUnalignedLpstr(blob) {
    return parse_VtVecUnalignedLpstrValue(blob);
  }

  /* [MS-OSHARED] 2.3.3.1.13 VtHeadingPair */
  function parse_VtHeadingPair(blob) {
    var headingString = parse_TypedPropertyValue(blob, VT_USTR);
    var headerParts = parse_TypedPropertyValue(blob, VT_I4);
    return [headingString, headerParts];
  }

  /* [MS-OSHARED] 2.3.3.1.14 VtVecHeadingPairValue */
  function parse_VtVecHeadingPairValue(blob) {
    var cElements = blob.read_shift(4);
    var out = [];
    for(var i = 0; i != cElements / 2; ++i) out.push(parse_VtHeadingPair(blob));
    return out;
  }

  /* [MS-OSHARED] 2.3.3.1.15 VtVecHeadingPair */
  function parse_VtVecHeadingPair(blob) {
    // NOTE: When invoked, wType & padding were already consumed
    return parse_VtVecHeadingPairValue(blob);
  }

  /* [MS-OLEPS] 2.18.1 Dictionary (uses 2.17, 2.16) */
  function parse_dictionary(blob,CodePage) {
    var cnt = blob.read_shift(4);
    var dict = ({});
    for(var j = 0; j != cnt; ++j) {
      var pid = blob.read_shift(4);
      var len = blob.read_shift(4);
      dict[pid] = blob.read_shift(len, (CodePage === 0x4B0 ?'utf16le':'utf8')).replace(chr0,'').replace(chr1,'!');
      if(CodePage === 0x4B0 && (len % 2)) blob.l += 2;
    }
    if(blob.l & 3) blob.l = (blob.l>>2+1)<<2;
    return dict;
  }

  /* [MS-OLEPS] 2.9 BLOB */
  function parse_BLOB(blob) {
    var size = blob.read_shift(4);
    var bytes = blob.slice(blob.l,blob.l+size);
    blob.l += size;
    if((size & 3) > 0) blob.l += (4 - (size & 3)) & 3;
    return bytes;
  }

  /* [MS-OLEPS] 2.11 ClipboardData */
  function parse_ClipboardData(blob) {
    // TODO
    var o = {};
    o.Size = blob.read_shift(4);
    //o.Format = blob.read_shift(4);
    blob.l += o.Size + 3 - (o.Size - 1) % 4;
    return o;
  }

  /* [MS-OLEPS] 2.15 TypedPropertyValue */
  function parse_TypedPropertyValue(blob, type, _opts) {
    var t = blob.read_shift(2), ret, opts = _opts||{};
    blob.l += 2;
    if(type !== VT_VARIANT)
      if(t !== type && VT_CUSTOM.indexOf(type)===-1) throw new Error('Expected type ' + type + ' saw ' + t);
    switch(type === VT_VARIANT ? t : type) {
      case 0x02 /*VT_I2*/: ret = blob.read_shift(2, 'i'); if(!opts.raw) blob.l += 2; return ret;
      case 0x03 /*VT_I4*/: ret = blob.read_shift(4, 'i'); return ret;
      case 0x0B /*VT_BOOL*/: return blob.read_shift(4) !== 0x0;
      case 0x13 /*VT_UI4*/: ret = blob.read_shift(4); return ret;
      case 0x1E /*VT_LPSTR*/: return parse_lpstr(blob, t, 4).replace(chr0,'');
      case 0x1F /*VT_LPWSTR*/: return parse_lpwstr(blob);
      case 0x40 /*VT_FILETIME*/: return parse_FILETIME(blob);
      case 0x41 /*VT_BLOB*/: return parse_BLOB(blob);
      case 0x47 /*VT_CF*/: return parse_ClipboardData(blob);
      case 0x50 /*VT_STRING*/: return parse_VtString(blob, t, !opts.raw).replace(chr0,'');
      case 0x51 /*VT_USTR*/: return parse_VtUnalignedString(blob, t/*, 4*/).replace(chr0,'');
      case 0x100C /*VT_VECTOR|VT_VARIANT*/: return parse_VtVecHeadingPair(blob);
      case 0x101E /*VT_LPSTR*/: return parse_VtVecUnalignedLpstr(blob);
      default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + t);
    }
  }
  function write_TypedPropertyValue(type, value) {
    var o = new_buf(4), p = new_buf(4);
    o.write_shift(4, type == 0x50 ? 0x1F : type);
    switch(type) {
      case 0x03 /*VT_I4*/: p.write_shift(-4, value); break;
      case 0x05 /*VT_I4*/: p = new_buf(8); p.write_shift(8, value, 'f'); break;
      case 0x0B /*VT_BOOL*/: p.write_shift(4, value ? 0x01 : 0x00); break;
      case 0x40 /*VT_FILETIME*/:  p = write_FILETIME(value); break;
      case 0x1F /*VT_LPWSTR*/:
      case 0x50 /*VT_STRING*/:
        p = new_buf(4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2));
        p.write_shift(4, value.length + 1);
        p.write_shift(0, value, "dbcs");
        while(p.l != p.length) p.write_shift(1, 0);
        break;
      default: throw new Error("TypedPropertyValue unrecognized type " + type + " " + value);
    }
    return bconcat([o, p]);
  }

  /* [MS-OLEPS] 2.20 PropertySet */
  function parse_PropertySet(blob, PIDSI) {
    var start_addr = blob.l;
    var size = blob.read_shift(4);
    var NumProps = blob.read_shift(4);
    var Props = [], i = 0;
    var CodePage = 0;
    var Dictionary = -1, DictObj = ({});
    for(i = 0; i != NumProps; ++i) {
      var PropID = blob.read_shift(4);
      var Offset = blob.read_shift(4);
      Props[i] = [PropID, Offset + start_addr];
    }
    Props.sort(function(x,y) { return x[1] - y[1]; });
    var PropH = {};
    for(i = 0; i != NumProps; ++i) {
      if(blob.l !== Props[i][1]) {
        var fail = true;
        if(i>0 && PIDSI) switch(PIDSI[Props[i-1][0]].t) {
          case 0x02 /*VT_I2*/: if(blob.l+2 === Props[i][1]) { blob.l+=2; fail = false; } break;
          case 0x50 /*VT_STRING*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break;
          case 0x100C /*VT_VECTOR|VT_VARIANT*/: if(blob.l <= Props[i][1]) { blob.l=Props[i][1]; fail = false; } break;
        }
        if((!PIDSI||i==0) && blob.l <= Props[i][1]) { fail=false; blob.l = Props[i][1]; }
        if(fail) throw new Error("Read Error: Expected address " + Props[i][1] + ' at ' + blob.l + ' :' + i);
      }
      if(PIDSI) {
        var piddsi = PIDSI[Props[i][0]];
        PropH[piddsi.n] = parse_TypedPropertyValue(blob, piddsi.t, {raw:true});
        if(piddsi.p === 'version') PropH[piddsi.n] = String(PropH[piddsi.n] >> 16) + "." + ("0000" + String(PropH[piddsi.n] & 0xFFFF)).slice(-4);
        if(piddsi.n == "CodePage") switch(PropH[piddsi.n]) {
          case 0: PropH[piddsi.n] = 1252;
          /* falls through */
          case 874:
          case 932:
          case 936:
          case 949:
          case 950:
          case 1250:
          case 1251:
          case 1253:
          case 1254:
          case 1255:
          case 1256:
          case 1257:
          case 1258:
          case 10000:
          case 1200:
          case 1201:
          case 1252:
          case 65000: case -536:
          case 65001: case -535:
            set_cp(CodePage = (PropH[piddsi.n]>>>0) & 0xFFFF); break;
          default: throw new Error("Unsupported CodePage: " + PropH[piddsi.n]);
        }
      } else {
        if(Props[i][0] === 0x1) {
          CodePage = PropH.CodePage = (parse_TypedPropertyValue(blob, VT_I2));
          set_cp(CodePage);
          if(Dictionary !== -1) {
            var oldpos = blob.l;
            blob.l = Props[Dictionary][1];
            DictObj = parse_dictionary(blob,CodePage);
            blob.l = oldpos;
          }
        } else if(Props[i][0] === 0) {
          if(CodePage === 0) { Dictionary = i; blob.l = Props[i+1][1]; continue; }
          DictObj = parse_dictionary(blob,CodePage);
        } else {
          var name = DictObj[Props[i][0]];
          var val;
          /* [MS-OSHARED] 2.3.3.2.3.1.2 + PROPVARIANT */
          switch(blob[blob.l]) {
            case 0x41 /*VT_BLOB*/: blob.l += 4; val = parse_BLOB(blob); break;
            case 0x1E /*VT_LPSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break;
            case 0x1F /*VT_LPWSTR*/: blob.l += 4; val = parse_VtString(blob, blob[blob.l-4]).replace(/\u0000+$/,""); break;
            case 0x03 /*VT_I4*/: blob.l += 4; val = blob.read_shift(4, 'i'); break;
            case 0x13 /*VT_UI4*/: blob.l += 4; val = blob.read_shift(4); break;
            case 0x05 /*VT_R8*/: blob.l += 4; val = blob.read_shift(8, 'f'); break;
            case 0x0B /*VT_BOOL*/: blob.l += 4; val = parsebool(blob, 4); break;
            case 0x40 /*VT_FILETIME*/: blob.l += 4; val = parseDate(parse_FILETIME(blob)); break;
            default: throw new Error("unparsed value: " + blob[blob.l]);
          }
          PropH[name] = val;
        }
      }
    }
    blob.l = start_addr + size; /* step ahead to skip padding */
    return PropH;
  }
  var XLSPSSkip = [ "CodePage", "Thumbnail", "_PID_LINKBASE", "_PID_HLINKS", "SystemIdentifier", "FMTID" ].concat(PseudoPropsPairs);
  function guess_property_type(val) {
    switch(typeof val) {
      case "boolean": return 0x0B;
      case "number": return ((val|0)==val) ? 0x03 : 0x05;
      case "string": return 0x1F;
      case "object": if(val instanceof Date) return 0x40; break;
    }
    return -1;
  }
  function write_PropertySet(entries, RE, PIDSI) {
    var hdr = new_buf(8), piao = [], prop = [];
    var sz = 8, i = 0;

    var pr = new_buf(8), pio = new_buf(8);
    pr.write_shift(4, 0x0002);
    pr.write_shift(4, 0x04B0);
    pio.write_shift(4, 0x0001);
    prop.push(pr); piao.push(pio);
    sz += 8 + pr.length;

    if(!RE) {
      pio = new_buf(8);
      pio.write_shift(4, 0);
      piao.unshift(pio);

      var bufs = [new_buf(4)];
      bufs[0].write_shift(4, entries.length);
      for(i = 0; i < entries.length; ++i) {
        var value = entries[i][0];
        pr = new_buf(4 + 4 + 2 * (value.length + 1) + (value.length % 2 ? 0 : 2));
        pr.write_shift(4, i+2);
        pr.write_shift(4, value.length + 1);
        pr.write_shift(0, value, "dbcs");
        while(pr.l != pr.length) pr.write_shift(1, 0);
        bufs.push(pr);
      }
      pr = bconcat(bufs);
      prop.unshift(pr);
      sz += 8 + pr.length;
    }

    for(i = 0; i < entries.length; ++i) {
      if(RE && !RE[entries[i][0]]) continue;
      if(XLSPSSkip.indexOf(entries[i][0]) > -1) continue;
      if(entries[i][1] == null) continue;

      var val = entries[i][1], idx = 0;
      if(RE) {
        idx = +RE[entries[i][0]];
        var pinfo = (PIDSI)[idx];
        if(pinfo.p == "version" && typeof val == "string") {
          var arr = val.split(".");
          val = ((+arr[0])<<16) + ((+arr[1])||0);
        }
        pr = write_TypedPropertyValue(pinfo.t, val);
      } else {
        var T = guess_property_type(val);
        if(T == -1) { T = 0x1F; val = String(val); }
        pr = write_TypedPropertyValue(T, val);
      }
      prop.push(pr);

      pio = new_buf(8);
      pio.write_shift(4, !RE ? 2+i : idx);
      piao.push(pio);

      sz += 8 + pr.length;
    }

    var w = 8 * (prop.length + 1);
    for(i = 0; i < prop.length; ++i) { piao[i].write_shift(4, w); w += prop[i].length; }
    hdr.write_shift(4, sz);
    hdr.write_shift(4, prop.length);
    return bconcat([hdr].concat(piao).concat(prop));
  }

  /* [MS-OLEPS] 2.21 PropertySetStream */
  function parse_PropertySetStream(file, PIDSI, clsid) {
    var blob = file.content;
    if(!blob) return ({});
    prep_blob(blob, 0);

    var NumSets, FMTID0, FMTID1, Offset0, Offset1 = 0;
    blob.chk('feff', 'Byte Order: ');

    /*var vers = */blob.read_shift(2); // TODO: check version
    var SystemIdentifier = blob.read_shift(4);
    var CLSID = blob.read_shift(16);
    if(CLSID !== CFB.utils.consts.HEADER_CLSID && CLSID !== clsid) throw new Error("Bad PropertySet CLSID " + CLSID);
    NumSets = blob.read_shift(4);
    if(NumSets !== 1 && NumSets !== 2) throw new Error("Unrecognized #Sets: " + NumSets);
    FMTID0 = blob.read_shift(16); Offset0 = blob.read_shift(4);

    if(NumSets === 1 && Offset0 !== blob.l) throw new Error("Length mismatch: " + Offset0 + " !== " + blob.l);
    else if(NumSets === 2) { FMTID1 = blob.read_shift(16); Offset1 = blob.read_shift(4); }
    var PSet0 = parse_PropertySet(blob, PIDSI);

    var rval = ({ SystemIdentifier: SystemIdentifier });
    for(var y in PSet0) rval[y] = PSet0[y];
    //rval.blob = blob;
    rval.FMTID = FMTID0;
    //rval.PSet0 = PSet0;
    if(NumSets === 1) return rval;
    if(Offset1 - blob.l == 2) blob.l += 2;
    if(blob.l !== Offset1) throw new Error("Length mismatch 2: " + blob.l + " !== " + Offset1);
    var PSet1;
    try { PSet1 = parse_PropertySet(blob, null); } catch(e) {/* empty */}
    for(y in PSet1) rval[y] = PSet1[y];
    rval.FMTID = [FMTID0, FMTID1]; // TODO: verify FMTID0/1
    return rval;
  }
  function write_PropertySetStream(entries, clsid, RE, PIDSI, entries2, clsid2) {
    var hdr = new_buf(entries2 ? 68 : 48);
    var bufs = [hdr];
    hdr.write_shift(2, 0xFFFE);
    hdr.write_shift(2, 0x0000); /* TODO: type 1 props */
    hdr.write_shift(4, 0x32363237);
    hdr.write_shift(16, CFB.utils.consts.HEADER_CLSID, "hex");
    hdr.write_shift(4, (entries2 ? 2 : 1));
    hdr.write_shift(16, clsid, "hex");
    hdr.write_shift(4, (entries2 ? 68 : 48));
    var ps0 = write_PropertySet(entries, RE, PIDSI);
    bufs.push(ps0);

    if(entries2) {
      var ps1 = write_PropertySet(entries2, null, null);
      hdr.write_shift(16, clsid2, "hex");
      hdr.write_shift(4, 68 + ps0.length);
      bufs.push(ps1);
    }
    return bconcat(bufs);
  }

  function parsenoop2(blob, length) { blob.read_shift(length); return null; }
  function writezeroes(n, o) { if(!o) o=new_buf(n); for(var j=0; j<n; ++j) o.write_shift(1, 0); return o; }

  function parslurp(blob, length, cb) {
    var arr = [], target = blob.l + length;
    while(blob.l < target) arr.push(cb(blob, target - blob.l));
    if(target !== blob.l) throw new Error("Slurp error");
    return arr;
  }

  function parsebool(blob, length) { return blob.read_shift(length) === 0x1; }
  function writebool(v, o) { if(!o) o=new_buf(2); o.write_shift(2, +!!v); return o; }

  function parseuint16(blob) { return blob.read_shift(2, 'u'); }
  function writeuint16(v, o) { if(!o) o=new_buf(2); o.write_shift(2, v); return o; }
  function parseuint16a(blob, length) { return parslurp(blob,length,parseuint16);}

  /* --- 2.5 Structures --- */

  /* [MS-XLS] 2.5.10 Bes (boolean or error) */
  function parse_Bes(blob) {
    var v = blob.read_shift(1), t = blob.read_shift(1);
    return t === 0x01 ? v : v === 0x01;
  }
  function write_Bes(v, t, o) {
    if(!o) o = new_buf(2);
    o.write_shift(1, +v);
    o.write_shift(1, ((t == 'e') ? 1 : 0));
    return o;
  }

  /* [MS-XLS] 2.5.240 ShortXLUnicodeString */
  function parse_ShortXLUnicodeString(blob, length, opts) {
    var cch = blob.read_shift(opts && opts.biff >= 12 ? 2 : 1);
    var encoding = 'sbcs-cont';
    var cp = current_codepage;
    if(opts && opts.biff >= 8) current_codepage = 1200;
    if(!opts || opts.biff == 8 ) {
      var fHighByte = blob.read_shift(1);
      if(fHighByte) { encoding = 'dbcs-cont'; }
    } else if(opts.biff == 12) {
      encoding = 'wstr';
    }
    if(opts.biff >= 2 && opts.biff <= 5) encoding = 'cpstr';
    var o = cch ? blob.read_shift(cch, encoding) : "";
    current_codepage = cp;
    return o;
  }

  /* 2.5.293 XLUnicodeRichExtendedString */
  function parse_XLUnicodeRichExtendedString(blob) {
    var cp = current_codepage;
    current_codepage = 1200;
    var cch = blob.read_shift(2), flags = blob.read_shift(1);
    var /*fHighByte = flags & 0x1,*/ fExtSt = flags & 0x4, fRichSt = flags & 0x8;
    var width = 1 + (flags & 0x1); // 0x0 -> utf8, 0x1 -> dbcs
    var cRun = 0, cbExtRst;
    var z = {};
    if(fRichSt) cRun = blob.read_shift(2);
    if(fExtSt) cbExtRst = blob.read_shift(4);
    var encoding = width == 2 ? 'dbcs-cont' : 'sbcs-cont';
    var msg = cch === 0 ? "" : blob.read_shift(cch, encoding);
    if(fRichSt) blob.l += 4 * cRun; //TODO: parse this
    if(fExtSt) blob.l += cbExtRst; //TODO: parse this
    z.t = msg;
    if(!fRichSt) { z.raw = "<t>" + z.t + "</t>"; z.r = z.t; }
    current_codepage = cp;
    return z;
  }

  /* 2.5.296 XLUnicodeStringNoCch */
  function parse_XLUnicodeStringNoCch(blob, cch, opts) {
    var retval;
    if(opts) {
      if(opts.biff >= 2 && opts.biff <= 5) return blob.read_shift(cch, 'cpstr');
      if(opts.biff >= 12) return blob.read_shift(cch, 'dbcs-cont');
    }
    var fHighByte = blob.read_shift(1);
    if(fHighByte===0) { retval = blob.read_shift(cch, 'sbcs-cont'); }
    else { retval = blob.read_shift(cch, 'dbcs-cont'); }
    return retval;
  }

  /* 2.5.294 XLUnicodeString */
  function parse_XLUnicodeString(blob, length, opts) {
    var cch = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    if(cch === 0) { blob.l++; return ""; }
    return parse_XLUnicodeStringNoCch(blob, cch, opts);
  }
  /* BIFF5 override */
  function parse_XLUnicodeString2(blob, length, opts) {
    if(opts.biff > 5) return parse_XLUnicodeString(blob, length, opts);
    var cch = blob.read_shift(1);
    if(cch === 0) { blob.l++; return ""; }
    return blob.read_shift(cch, (opts.biff <= 4 || !blob.lens ) ? 'cpstr' : 'sbcs-cont');
  }
  /* TODO: BIFF5 and lower, codepage awareness */
  function write_XLUnicodeString(str, opts, o) {
    if(!o) o = new_buf(3 + 2 * str.length);
    o.write_shift(2, str.length);
    o.write_shift(1, 1);
    o.write_shift(31, str, 'utf16le');
    return o;
  }

  /* [MS-XLS] 2.5.61 ControlInfo */
  function parse_ControlInfo(blob) {
    var flags = blob.read_shift(1);
    blob.l++;
    var accel = blob.read_shift(2);
    blob.l += 2;
    return [flags, accel];
  }

  /* [MS-OSHARED] 2.3.7.6 URLMoniker TODO: flags */
  function parse_URLMoniker(blob) {
    var len = blob.read_shift(4), start = blob.l;
    var extra = false;
    if(len > 24) {
      /* look ahead */
      blob.l += len - 24;
      if(blob.read_shift(16) === "795881f43b1d7f48af2c825dc4852763") extra = true;
      blob.l = start;
    }
    var url = blob.read_shift((extra?len-24:len)>>1, 'utf16le').replace(chr0,"");
    if(extra) blob.l += 24;
    return url;
  }

  /* [MS-OSHARED] 2.3.7.8 FileMoniker TODO: all fields */
  function parse_FileMoniker(blob) {
    blob.l += 2; //var cAnti = blob.read_shift(2);
    var ansiPath = blob.read_shift(0, 'lpstr-ansi');
    blob.l += 2; //var endServer = blob.read_shift(2);
    if(blob.read_shift(2) != 0xDEAD) throw new Error("Bad FileMoniker");
    var sz = blob.read_shift(4);
    if(sz === 0) return ansiPath.replace(/\\/g,"/");
    var bytes = blob.read_shift(4);
    if(blob.read_shift(2) != 3) throw new Error("Bad FileMoniker");
    var unicodePath = blob.read_shift(bytes>>1, 'utf16le').replace(chr0,"");
    return unicodePath;
  }

  /* [MS-OSHARED] 2.3.7.2 HyperlinkMoniker TODO: all the monikers */
  function parse_HyperlinkMoniker(blob, length) {
    var clsid = blob.read_shift(16); length -= 16;
    switch(clsid) {
      case "e0c9ea79f9bace118c8200aa004ba90b": return parse_URLMoniker(blob, length);
      case "0303000000000000c000000000000046": return parse_FileMoniker(blob, length);
      default: throw new Error("Unsupported Moniker " + clsid);
    }
  }

  /* [MS-OSHARED] 2.3.7.9 HyperlinkString */
  function parse_HyperlinkString(blob) {
    var len = blob.read_shift(4);
    var o = len > 0 ? blob.read_shift(len, 'utf16le').replace(chr0, "") : "";
    return o;
  }

  /* [MS-OSHARED] 2.3.7.1 Hyperlink Object */
  function parse_Hyperlink(blob, length) {
    var end = blob.l + length;
    var sVer = blob.read_shift(4);
    if(sVer !== 2) throw new Error("Unrecognized streamVersion: " + sVer);
    var flags = blob.read_shift(2);
    blob.l += 2;
    var displayName, targetFrameName, moniker, oleMoniker, Loc="", guid, fileTime;
    if(flags & 0x0010) displayName = parse_HyperlinkString(blob, end - blob.l);
    if(flags & 0x0080) targetFrameName = parse_HyperlinkString(blob, end - blob.l);
    if((flags & 0x0101) === 0x0101) moniker = parse_HyperlinkString(blob, end - blob.l);
    if((flags & 0x0101) === 0x0001) oleMoniker = parse_HyperlinkMoniker(blob, end - blob.l);
    if(flags & 0x0008) Loc = parse_HyperlinkString(blob, end - blob.l);
    if(flags & 0x0020) guid = blob.read_shift(16);
    if(flags & 0x0040) fileTime = parse_FILETIME(blob/*, 8*/);
    blob.l = end;
    var target = targetFrameName||moniker||oleMoniker||"";
    if(target && Loc) target+="#"+Loc;
    if(!target) target = "#" + Loc;
    var out = ({Target:target});
    if(guid) out.guid = guid;
    if(fileTime) out.time = fileTime;
    if(displayName) out.Tooltip = displayName;
    return out;
  }
  function write_Hyperlink(hl) {
    var out = new_buf(512), i = 0;
    var Target = hl.Target;
    var F = Target.indexOf("#") > -1 ? 0x1f : 0x17;
    switch(Target.charAt(0)) { case "#": F=0x1c; break; case ".": F&=~2; break; }
    out.write_shift(4,2); out.write_shift(4, F);
    var data = [8,6815827,6619237,4849780,83]; for(i = 0; i < data.length; ++i) out.write_shift(4, data[i]);
    if(F == 0x1C) {
      Target = Target.slice(1);
      out.write_shift(4, Target.length + 1);
      for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
      out.write_shift(2, 0);
    } else if(F & 0x02) {
      data = "e0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" ");
      for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
      out.write_shift(4, 2*(Target.length + 1));
      for(i = 0; i < Target.length; ++i) out.write_shift(2, Target.charCodeAt(i));
      out.write_shift(2, 0);
    } else {
      data = "03 03 00 00 00 00 00 00 c0 00 00 00 00 00 00 46".split(" ");
      for(i = 0; i < data.length; ++i) out.write_shift(1, parseInt(data[i], 16));
      var P = 0;
      while(Target.slice(P*3,P*3+3)=="../"||Target.slice(P*3,P*3+3)=="..\\") ++P;
      out.write_shift(2, P);
      out.write_shift(4, Target.length + 1);
      for(i = 0; i < Target.length; ++i) out.write_shift(1, Target.charCodeAt(i) & 0xFF);
      out.write_shift(1, 0);
      out.write_shift(2, 0xFFFF);
      out.write_shift(2, 0xDEAD);
      for(i = 0; i < 6; ++i) out.write_shift(4, 0);
    }
    return out.slice(0, out.l);
  }

  /* 2.5.178 LongRGBA */
  function parse_LongRGBA(blob) { var r = blob.read_shift(1), g = blob.read_shift(1), b = blob.read_shift(1), a = blob.read_shift(1); return [r,g,b,a]; }

  /* 2.5.177 LongRGB */
  function parse_LongRGB(blob, length) { var x = parse_LongRGBA(blob, length); x[3] = 0; return x; }


  /* [MS-XLS] 2.5.19 */
  function parse_XLSCell(blob) {
    var rw = blob.read_shift(2); // 0-indexed
    var col = blob.read_shift(2);
    var ixfe = blob.read_shift(2);
    return ({r:rw, c:col, ixfe:ixfe});
  }
  function write_XLSCell(R, C, ixfe, o) {
    if(!o) o = new_buf(6);
    o.write_shift(2, R);
    o.write_shift(2, C);
    o.write_shift(2, ixfe||0);
    return o;
  }

  /* [MS-XLS] 2.5.134 */
  function parse_frtHeader(blob) {
    var rt = blob.read_shift(2);
    var flags = blob.read_shift(2); // TODO: parse these flags
    blob.l += 8;
    return {type: rt, flags: flags};
  }



  function parse_OptXLUnicodeString(blob, length, opts) { return length === 0 ? "" : parse_XLUnicodeString2(blob, length, opts); }

  /* [MS-XLS] 2.5.344 */
  function parse_XTI(blob, length, opts) {
    var w = opts.biff > 8 ? 4 : 2;
    var iSupBook = blob.read_shift(w), itabFirst = blob.read_shift(w,'i'), itabLast = blob.read_shift(w,'i');
    return [iSupBook, itabFirst, itabLast];
  }

  /* [MS-XLS] 2.5.218 */
  function parse_RkRec(blob) {
    var ixfe = blob.read_shift(2);
    var RK = parse_RkNumber(blob);
    return [ixfe, RK];
  }

  /* [MS-XLS] 2.5.1 */
  function parse_AddinUdf(blob, length, opts) {
    blob.l += 4; length -= 4;
    var l = blob.l + length;
    var udfName = parse_ShortXLUnicodeString(blob, length, opts);
    var cb = blob.read_shift(2);
    l -= blob.l;
    if(cb !== l) throw new Error("Malformed AddinUdf: padding = " + l + " != " + cb);
    blob.l += cb;
    return udfName;
  }

  /* [MS-XLS] 2.5.209 TODO: Check sizes */
  function parse_Ref8U(blob) {
    var rwFirst = blob.read_shift(2);
    var rwLast = blob.read_shift(2);
    var colFirst = blob.read_shift(2);
    var colLast = blob.read_shift(2);
    return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
  }
  function write_Ref8U(r, o) {
    if(!o) o = new_buf(8);
    o.write_shift(2, r.s.r);
    o.write_shift(2, r.e.r);
    o.write_shift(2, r.s.c);
    o.write_shift(2, r.e.c);
    return o;
  }

  /* [MS-XLS] 2.5.211 */
  function parse_RefU(blob) {
    var rwFirst = blob.read_shift(2);
    var rwLast = blob.read_shift(2);
    var colFirst = blob.read_shift(1);
    var colLast = blob.read_shift(1);
    return {s:{c:colFirst, r:rwFirst}, e:{c:colLast,r:rwLast}};
  }

  /* [MS-XLS] 2.5.207 */
  var parse_Ref = parse_RefU;

  /* [MS-XLS] 2.5.143 */
  function parse_FtCmo(blob) {
    blob.l += 4;
    var ot = blob.read_shift(2);
    var id = blob.read_shift(2);
    var flags = blob.read_shift(2);
    blob.l+=12;
    return [id, ot, flags];
  }

  /* [MS-XLS] 2.5.149 */
  function parse_FtNts(blob) {
    var out = {};
    blob.l += 4;
    blob.l += 16; // GUID TODO
    out.fSharedNote = blob.read_shift(2);
    blob.l += 4;
    return out;
  }

  /* [MS-XLS] 2.5.142 */
  function parse_FtCf(blob) {
    var out = {};
    blob.l += 4;
    blob.cf = blob.read_shift(2);
    return out;
  }

  /* [MS-XLS] 2.5.140 - 2.5.154 and friends */
  function parse_FtSkip(blob) { blob.l += 2; blob.l += blob.read_shift(2); }
  var FtTab = {
    0x00: parse_FtSkip,      /* FtEnd */
    0x04: parse_FtSkip,      /* FtMacro */
    0x05: parse_FtSkip,      /* FtButton */
    0x06: parse_FtSkip,      /* FtGmo */
    0x07: parse_FtCf,        /* FtCf */
    0x08: parse_FtSkip,      /* FtPioGrbit */
    0x09: parse_FtSkip,      /* FtPictFmla */
    0x0A: parse_FtSkip,      /* FtCbls */
    0x0B: parse_FtSkip,      /* FtRbo */
    0x0C: parse_FtSkip,      /* FtSbs */
    0x0D: parse_FtNts,       /* FtNts */
    0x0E: parse_FtSkip,      /* FtSbsFmla */
    0x0F: parse_FtSkip,      /* FtGboData */
    0x10: parse_FtSkip,      /* FtEdoData */
    0x11: parse_FtSkip,      /* FtRboData */
    0x12: parse_FtSkip,      /* FtCblsData */
    0x13: parse_FtSkip,      /* FtLbsData */
    0x14: parse_FtSkip,      /* FtCblsFmla */
    0x15: parse_FtCmo
  };
  function parse_FtArray(blob, length) {
    var tgt = blob.l + length;
    var fts = [];
    while(blob.l < tgt) {
      var ft = blob.read_shift(2);
      blob.l-=2;
      try {
        fts.push(FtTab[ft](blob, tgt - blob.l));
      } catch(e) { blob.l = tgt; return fts; }
    }
    if(blob.l != tgt) blob.l = tgt; //throw new Error("bad Object Ft-sequence");
    return fts;
  }

  /* --- 2.4 Records --- */

  /* [MS-XLS] 2.4.21 */
  function parse_BOF(blob, length) {
    var o = {BIFFVer:0, dt:0};
    o.BIFFVer = blob.read_shift(2); length -= 2;
    if(length >= 2) { o.dt = blob.read_shift(2); blob.l -= 2; }
    switch(o.BIFFVer) {
      case 0x0600: /* BIFF8 */
      case 0x0500: /* BIFF5 */
      case 0x0400: /* BIFF4 */
      case 0x0300: /* BIFF3 */
      case 0x0200: /* BIFF2 */
      case 0x0002: case 0x0007: /* BIFF2 */
        break;
      default: if(length > 6) throw new Error("Unexpected BIFF Ver " + o.BIFFVer);
    }

    blob.read_shift(length);
    return o;
  }
  function write_BOF(wb, t, o) {
    var h = 0x0600, w = 16;
    switch(o.bookType) {
      case 'biff8': break;
      case 'biff5': h = 0x0500; w = 8; break;
      case 'biff4': h = 0x0004; w = 6; break;
      case 'biff3': h = 0x0003; w = 6; break;
      case 'biff2': h = 0x0002; w = 4; break;
      case 'xla': break;
      default: throw new Error("unsupported BIFF version");
    }
    var out = new_buf(w);
    out.write_shift(2, h);
    out.write_shift(2, t);
    if(w > 4) out.write_shift(2, 0x7262);
    if(w > 6) out.write_shift(2, 0x07CD);
    if(w > 8) {
      out.write_shift(2, 0xC009);
      out.write_shift(2, 0x0001);
      out.write_shift(2, 0x0706);
      out.write_shift(2, 0x0000);
    }
    return out;
  }


  /* [MS-XLS] 2.4.146 */
  function parse_InterfaceHdr(blob, length) {
    if(length === 0) return 0x04b0;
    if((blob.read_shift(2))!==0x04b0){/* empty */}
    return 0x04b0;
  }


  /* [MS-XLS] 2.4.349 */
  function parse_WriteAccess(blob, length, opts) {
    if(opts.enc) { blob.l += length; return ""; }
    var l = blob.l;
    // TODO: make sure XLUnicodeString doesnt overrun
    var UserName = parse_XLUnicodeString2(blob, 0, opts);
    blob.read_shift(length + l - blob.l);
    return UserName;
  }
  function write_WriteAccess(s, opts) {
    var b8 = !opts || opts.biff == 8;
    var o = new_buf(b8 ? 112 : 54);
    o.write_shift(opts.biff == 8 ? 2 : 1, 7);
    if(b8) o.write_shift(1, 0);
    o.write_shift(4, 0x33336853);
    o.write_shift(4, (0x00534A74 | (b8 ? 0 : 0x20000000)));
    while(o.l < o.length) o.write_shift(1, (b8 ? 0 : 32));
    return o;
  }

  /* [MS-XLS] 2.4.351 */
  function parse_WsBool(blob, length, opts) {
    var flags = opts && opts.biff == 8 || length == 2 ? blob.read_shift(2) : (blob.l += length, 0);
    return { fDialog: flags & 0x10 };
  }

  /* [MS-XLS] 2.4.28 */
  function parse_BoundSheet8(blob, length, opts) {
    var pos = blob.read_shift(4);
    var hidden = blob.read_shift(1) & 0x03;
    var dt = blob.read_shift(1);
    switch(dt) {
      case 0: dt = 'Worksheet'; break;
      case 1: dt = 'Macrosheet'; break;
      case 2: dt = 'Chartsheet'; break;
      case 6: dt = 'VBAModule'; break;
    }
    var name = parse_ShortXLUnicodeString(blob, 0, opts);
    if(name.length === 0) name = "Sheet1";
    return { pos:pos, hs:hidden, dt:dt, name:name };
  }
  function write_BoundSheet8(data, opts) {
    var w = (!opts || opts.biff >= 8 ? 2 : 1);
    var o = new_buf(8 + w * data.name.length);
    o.write_shift(4, data.pos);
    o.write_shift(1, data.hs || 0);
    o.write_shift(1, data.dt);
    o.write_shift(1, data.name.length);
    if(opts.biff >= 8) o.write_shift(1, 1);
    o.write_shift(w * data.name.length, data.name, opts.biff < 8 ? 'sbcs' : 'utf16le');
    var out = o.slice(0, o.l);
    out.l = o.l; return out;
  }

  /* [MS-XLS] 2.4.265 TODO */
  function parse_SST(blob, length) {
    var end = blob.l + length;
    var cnt = blob.read_shift(4);
    var ucnt = blob.read_shift(4);
    var strs = ([]);
    for(var i = 0; i != ucnt && blob.l < end; ++i) {
      strs.push(parse_XLUnicodeRichExtendedString(blob));
    }
    strs.Count = cnt; strs.Unique = ucnt;
    return strs;
  }

  /* [MS-XLS] 2.4.107 */
  function parse_ExtSST(blob, length) {
    var extsst = {};
    extsst.dsst = blob.read_shift(2);
    blob.l += length-2;
    return extsst;
  }


  /* [MS-XLS] 2.4.221 TODO: check BIFF2-4 */
  function parse_Row(blob) {
    var z = ({});
    z.r = blob.read_shift(2);
    z.c = blob.read_shift(2);
    z.cnt = blob.read_shift(2) - z.c;
    var miyRw = blob.read_shift(2);
    blob.l += 4; // reserved(2), unused(2)
    var flags = blob.read_shift(1); // various flags
    blob.l += 3; // reserved(8), ixfe(12), flags(4)
    if(flags & 0x07) z.level = flags & 0x07;
    // collapsed: flags & 0x10
    if(flags & 0x20) z.hidden = true;
    if(flags & 0x40) z.hpt = miyRw / 20;
    return z;
  }


  /* [MS-XLS] 2.4.125 */
  function parse_ForceFullCalculation(blob) {
    var header = parse_frtHeader(blob);
    if(header.type != 0x08A3) throw new Error("Invalid Future Record " + header.type);
    var fullcalc = blob.read_shift(4);
    return fullcalc !== 0x0;
  }





  /* [MS-XLS] 2.4.215 rt */
  function parse_RecalcId(blob) {
    blob.read_shift(2);
    return blob.read_shift(4);
  }

  /* [MS-XLS] 2.4.87 */
  function parse_DefaultRowHeight(blob, length, opts) {
    var f = 0;
    if(!(opts && opts.biff == 2)) {
      f = blob.read_shift(2);
    }
    var miyRw = blob.read_shift(2);
    if((opts && opts.biff == 2)) {
      f = 1 - (miyRw >> 15); miyRw &= 0x7fff;
    }
    var fl = {Unsynced:f&1,DyZero:(f&2)>>1,ExAsc:(f&4)>>2,ExDsc:(f&8)>>3};
    return [fl, miyRw];
  }

  /* [MS-XLS] 2.4.345 TODO */
  function parse_Window1(blob) {
    var xWn = blob.read_shift(2), yWn = blob.read_shift(2), dxWn = blob.read_shift(2), dyWn = blob.read_shift(2);
    var flags = blob.read_shift(2), iTabCur = blob.read_shift(2), iTabFirst = blob.read_shift(2);
    var ctabSel = blob.read_shift(2), wTabRatio = blob.read_shift(2);
    return { Pos: [xWn, yWn], Dim: [dxWn, dyWn], Flags: flags, CurTab: iTabCur,
      FirstTab: iTabFirst, Selected: ctabSel, TabRatio: wTabRatio };
  }
  function write_Window1() {
    var o = new_buf(18);
    o.write_shift(2, 0);
    o.write_shift(2, 0);
    o.write_shift(2, 0x7260);
    o.write_shift(2, 0x44c0);
    o.write_shift(2, 0x38);
    o.write_shift(2, 0);
    o.write_shift(2, 0);
    o.write_shift(2, 1);
    o.write_shift(2, 0x01f4);
    return o;
  }
  /* [MS-XLS] 2.4.346 TODO */
  function parse_Window2(blob, length, opts) {
    if(opts && opts.biff >= 2 && opts.biff < 8) return {};
    var f = blob.read_shift(2);
    return { RTL: f & 0x40 };
  }
  function write_Window2(view) {
    var o = new_buf(18), f = 0x6b6;
    if(view && view.RTL) f |= 0x40;
    o.write_shift(2, f);
    o.write_shift(4, 0);
    o.write_shift(4, 64);
    o.write_shift(4, 0);
    o.write_shift(4, 0);
    return o;
  }

  /* [MS-XLS] 2.4.122 TODO */
  function parse_Font(blob, length, opts) {
    var o = {
      dyHeight: blob.read_shift(2),
      fl: blob.read_shift(2)
    };
    switch((opts && opts.biff) || 8) {
      case 2: break;
      case 3: case 4: blob.l += 2; break;
      default: blob.l += 10; break;
    }
    o.name = parse_ShortXLUnicodeString(blob, 0, opts);
    return o;
  }
  function write_Font(data, opts) {
    var name = data.name || "Arial";
    var b5 = (opts && (opts.biff == 5)), w = (b5 ? (15 + name.length) : (16 + 2 * name.length));
    var o = new_buf(w);
    o.write_shift(2, (data.sz || 12) * 20);
    o.write_shift(4, 0);
    o.write_shift(2, 400);
    o.write_shift(4, 0);
    o.write_shift(2, 0);
    o.write_shift(1, name.length);
    if(!b5) o.write_shift(1, 1);
    o.write_shift((b5 ? 1 : 2) * name.length, name, (b5 ? "sbcs" : "utf16le"));
    return o;
  }

  /* [MS-XLS] 2.4.149 */
  function parse_LabelSst(blob) {
    var cell = parse_XLSCell(blob);
    cell.isst = blob.read_shift(4);
    return cell;
  }

  /* [MS-XLS] 2.4.148 */
  function parse_Label(blob, length, opts) {
    var target = blob.l + length;
    var cell = parse_XLSCell(blob, 6);
    if(opts.biff == 2) blob.l++;
    var str = parse_XLUnicodeString(blob, target - blob.l, opts);
    cell.val = str;
    return cell;
  }
  function write_Label(R, C, v, os, opts) {
    var b8 = !opts || opts.biff == 8;
    var o = new_buf(6 + 2 + (+b8) + (1 + b8) * v.length);
    write_XLSCell(R, C, os, o);
    o.write_shift(2, v.length);
    if(b8) o.write_shift(1, 1);
    o.write_shift((1 + b8) * v.length, v, b8 ? 'utf16le' : 'sbcs');
    return o;
  }


  /* [MS-XLS] 2.4.126 Number Formats */
  function parse_Format(blob, length, opts) {
    var numFmtId = blob.read_shift(2);
    var fmtstr = parse_XLUnicodeString2(blob, 0, opts);
    return [numFmtId, fmtstr];
  }
  function write_Format(i, f, opts, o) {
    var b5 = (opts && (opts.biff == 5));
    if(!o) o = new_buf(b5 ? (3 + f.length) : (5 + 2 * f.length));
    o.write_shift(2, i);
    o.write_shift((b5 ? 1 : 2), f.length);
    if(!b5) o.write_shift(1, 1);
    o.write_shift((b5 ? 1 : 2) * f.length, f, (b5 ? 'sbcs' : 'utf16le'));
    var out = (o.length > o.l) ? o.slice(0, o.l) : o;
    if(out.l == null) out.l = out.length;
    return out;
  }
  var parse_BIFF2Format = parse_XLUnicodeString2;

  /* [MS-XLS] 2.4.90 */
  function parse_Dimensions(blob, length, opts) {
    var end = blob.l + length;
    var w = opts.biff == 8 || !opts.biff ? 4 : 2;
    var r = blob.read_shift(w), R = blob.read_shift(w);
    var c = blob.read_shift(2), C = blob.read_shift(2);
    blob.l = end;
    return {s: {r:r, c:c}, e: {r:R, c:C}};
  }
  function write_Dimensions(range, opts) {
    var w = opts.biff == 8 || !opts.biff ? 4 : 2;
    var o = new_buf(2*w + 6);
    o.write_shift(w, range.s.r);
    o.write_shift(w, range.e.r + 1);
    o.write_shift(2, range.s.c);
    o.write_shift(2, range.e.c + 1);
    o.write_shift(2, 0);
    return o;
  }

  /* [MS-XLS] 2.4.220 */
  function parse_RK(blob) {
    var rw = blob.read_shift(2), col = blob.read_shift(2);
    var rkrec = parse_RkRec(blob);
    return {r:rw, c:col, ixfe:rkrec[0], rknum:rkrec[1]};
  }

  /* [MS-XLS] 2.4.175 */
  function parse_MulRk(blob, length) {
    var target = blob.l + length - 2;
    var rw = blob.read_shift(2), col = blob.read_shift(2);
    var rkrecs = [];
    while(blob.l < target) rkrecs.push(parse_RkRec(blob));
    if(blob.l !== target) throw new Error("MulRK read error");
    var lastcol = blob.read_shift(2);
    if(rkrecs.length != lastcol - col + 1) throw new Error("MulRK length mismatch");
    return {r:rw, c:col, C:lastcol, rkrec:rkrecs};
  }
  /* [MS-XLS] 2.4.174 */
  function parse_MulBlank(blob, length) {
    var target = blob.l + length - 2;
    var rw = blob.read_shift(2), col = blob.read_shift(2);
    var ixfes = [];
    while(blob.l < target) ixfes.push(blob.read_shift(2));
    if(blob.l !== target) throw new Error("MulBlank read error");
    var lastcol = blob.read_shift(2);
    if(ixfes.length != lastcol - col + 1) throw new Error("MulBlank length mismatch");
    return {r:rw, c:col, C:lastcol, ixfe:ixfes};
  }

  /* [MS-XLS] 2.5.20 2.5.249 TODO: interpret values here */
  function parse_CellStyleXF(blob, length, style, opts) {
    var o = {};
    var a = blob.read_shift(4), b = blob.read_shift(4);
    var c = blob.read_shift(4), d = blob.read_shift(2);
    o.patternType = XLSFillPattern[c >> 26];

    if(!opts.cellStyles) return o;
    o.alc = a & 0x07;
    o.fWrap = (a >> 3) & 0x01;
    o.alcV = (a >> 4) & 0x07;
    o.fJustLast = (a >> 7) & 0x01;
    o.trot = (a >> 8) & 0xFF;
    o.cIndent = (a >> 16) & 0x0F;
    o.fShrinkToFit = (a >> 20) & 0x01;
    o.iReadOrder = (a >> 22) & 0x02;
    o.fAtrNum = (a >> 26) & 0x01;
    o.fAtrFnt = (a >> 27) & 0x01;
    o.fAtrAlc = (a >> 28) & 0x01;
    o.fAtrBdr = (a >> 29) & 0x01;
    o.fAtrPat = (a >> 30) & 0x01;
    o.fAtrProt = (a >> 31) & 0x01;

    o.dgLeft = b & 0x0F;
    o.dgRight = (b >> 4) & 0x0F;
    o.dgTop = (b >> 8) & 0x0F;
    o.dgBottom = (b >> 12) & 0x0F;
    o.icvLeft = (b >> 16) & 0x7F;
    o.icvRight = (b >> 23) & 0x7F;
    o.grbitDiag = (b >> 30) & 0x03;

    o.icvTop = c & 0x7F;
    o.icvBottom = (c >> 7) & 0x7F;
    o.icvDiag = (c >> 14) & 0x7F;
    o.dgDiag = (c >> 21) & 0x0F;

    o.icvFore = d & 0x7F;
    o.icvBack = (d >> 7) & 0x7F;
    o.fsxButton = (d >> 14) & 0x01;
    return o;
  }
//function parse_CellXF(blob, length, opts) {return parse_CellStyleXF(blob,length,0, opts);}
//function parse_StyleXF(blob, length, opts) {return parse_CellStyleXF(blob,length,1, opts);}

  /* [MS-XLS] 2.4.353 TODO: actually do this right */
  function parse_XF(blob, length, opts) {
    var o = {};
    o.ifnt = blob.read_shift(2); o.numFmtId = blob.read_shift(2); o.flags = blob.read_shift(2);
    o.fStyle = (o.flags >> 2) & 0x01;
    length -= 6;
    o.data = parse_CellStyleXF(blob, length, o.fStyle, opts);
    return o;
  }
  function write_XF(data, ixfeP, opts, o) {
    var b5 = (opts && (opts.biff == 5));
    if(!o) o = new_buf(b5 ? 16 : 20);
    o.write_shift(2, 0);
    if(data.style) {
      o.write_shift(2, (data.numFmtId||0));
      o.write_shift(2, 0xFFF4);
    } else {
      o.write_shift(2, (data.numFmtId||0));
      o.write_shift(2, (ixfeP<<4));
    }
    o.write_shift(4, 0);
    o.write_shift(4, 0);
    if(!b5) o.write_shift(4, 0);
    o.write_shift(2, 0);
    return o;
  }

  /* [MS-XLS] 2.4.134 */
  function parse_Guts(blob) {
    blob.l += 4;
    var out = [blob.read_shift(2), blob.read_shift(2)];
    if(out[0] !== 0) out[0]--;
    if(out[1] !== 0) out[1]--;
    if(out[0] > 7 || out[1] > 7) throw new Error("Bad Gutters: " + out.join("|"));
    return out;
  }
  function write_Guts(guts) {
    var o = new_buf(8);
    o.write_shift(4, 0);
    o.write_shift(2, guts[0] ? guts[0] + 1 : 0);
    o.write_shift(2, guts[1] ? guts[1] + 1 : 0);
    return o;
  }

  /* [MS-XLS] 2.4.24 */
  function parse_BoolErr(blob, length, opts) {
    var cell = parse_XLSCell(blob, 6);
    if(opts.biff == 2) ++blob.l;
    var val = parse_Bes(blob, 2);
    cell.val = val;
    cell.t = (val === true || val === false) ? 'b' : 'e';
    return cell;
  }
  function write_BoolErr(R, C, v, os, opts, t) {
    var o = new_buf(8);
    write_XLSCell(R, C, os, o);
    write_Bes(v, t, o);
    return o;
  }

  /* [MS-XLS] 2.4.180 Number */
  function parse_Number(blob) {
    var cell = parse_XLSCell(blob, 6);
    var xnum = parse_Xnum(blob, 8);
    cell.val = xnum;
    return cell;
  }
  function write_Number(R, C, v, os) {
    var o = new_buf(14);
    write_XLSCell(R, C, os, o);
    write_Xnum(v, o);
    return o;
  }

  var parse_XLHeaderFooter = parse_OptXLUnicodeString; // TODO: parse 2.4.136

  /* [MS-XLS] 2.4.271 */
  function parse_SupBook(blob, length, opts) {
    var end = blob.l + length;
    var ctab = blob.read_shift(2);
    var cch = blob.read_shift(2);
    opts.sbcch = cch;
    if(cch == 0x0401 || cch == 0x3A01) return [cch, ctab];
    if(cch < 0x01 || cch >0xff) throw new Error("Unexpected SupBook type: "+cch);
    var virtPath = parse_XLUnicodeStringNoCch(blob, cch);
    /* TODO: 2.5.277 Virtual Path */
    var rgst = [];
    while(end > blob.l) rgst.push(parse_XLUnicodeString(blob));
    return [cch, ctab, virtPath, rgst];
  }

  /* [MS-XLS] 2.4.105 TODO */
  function parse_ExternName(blob, length, opts) {
    var flags = blob.read_shift(2);
    var body;
    var o = ({
      fBuiltIn: flags & 0x01,
      fWantAdvise: (flags >>> 1) & 0x01,
      fWantPict: (flags >>> 2) & 0x01,
      fOle: (flags >>> 3) & 0x01,
      fOleLink: (flags >>> 4) & 0x01,
      cf: (flags >>> 5) & 0x3FF,
      fIcon: flags >>> 15 & 0x01
    });
    if(opts.sbcch === 0x3A01) body = parse_AddinUdf(blob, length-2, opts);
    //else throw new Error("unsupported SupBook cch: " + opts.sbcch);
    o.body = body || blob.read_shift(length-2);
    if(typeof body === "string") o.Name = body;
    return o;
  }

  /* [MS-XLS] 2.4.150 TODO */
  var XLSLblBuiltIn = [
    "_xlnm.Consolidate_Area",
    "_xlnm.Auto_Open",
    "_xlnm.Auto_Close",
    "_xlnm.Extract",
    "_xlnm.Database",
    "_xlnm.Criteria",
    "_xlnm.Print_Area",
    "_xlnm.Print_Titles",
    "_xlnm.Recorder",
    "_xlnm.Data_Form",
    "_xlnm.Auto_Activate",
    "_xlnm.Auto_Deactivate",
    "_xlnm.Sheet_Title",
    "_xlnm._FilterDatabase"
  ];
  function parse_Lbl(blob, length, opts) {
    var target = blob.l + length;
    var flags = blob.read_shift(2);
    var chKey = blob.read_shift(1);
    var cch = blob.read_shift(1);
    var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    var itab = 0;
    if(!opts || opts.biff >= 5) {
      if(opts.biff != 5) blob.l += 2;
      itab = blob.read_shift(2);
      if(opts.biff == 5) blob.l += 2;
      blob.l += 4;
    }
    var name = parse_XLUnicodeStringNoCch(blob, cch, opts);
    if(flags & 0x20) name = XLSLblBuiltIn[name.charCodeAt(0)];
    var npflen = target - blob.l; if(opts && opts.biff == 2) --npflen;
    var rgce = target == blob.l || cce === 0 ? [] : parse_NameParsedFormula(blob, npflen, opts, cce);
    return {
      chKey: chKey,
      Name: name,
      itab: itab,
      rgce: rgce
    };
  }

  /* [MS-XLS] 2.4.106 TODO: verify filename encoding */
  function parse_ExternSheet(blob, length, opts) {
    if(opts.biff < 8) return parse_BIFF5ExternSheet(blob, length, opts);
    var o = [], target = blob.l + length, len = blob.read_shift(opts.biff > 8 ? 4 : 2);
    while(len-- !== 0) o.push(parse_XTI(blob, opts.biff > 8 ? 12 : 6, opts));
    // [iSupBook, itabFirst, itabLast];
    if(blob.l != target) throw new Error("Bad ExternSheet: " + blob.l + " != " + target);
    return o;
  }
  function parse_BIFF5ExternSheet(blob, length, opts) {
    if(blob[blob.l + 1] == 0x03) blob[blob.l]++;
    var o = parse_ShortXLUnicodeString(blob, length, opts);
    return o.charCodeAt(0) == 0x03 ? o.slice(1) : o;
  }

  /* [MS-XLS] 2.4.176 TODO: check older biff */
  function parse_NameCmt(blob, length, opts) {
    if(opts.biff < 8) { blob.l += length; return; }
    var cchName = blob.read_shift(2);
    var cchComment = blob.read_shift(2);
    var name = parse_XLUnicodeStringNoCch(blob, cchName, opts);
    var comment = parse_XLUnicodeStringNoCch(blob, cchComment, opts);
    return [name, comment];
  }

  /* [MS-XLS] 2.4.260 */
  function parse_ShrFmla(blob, length, opts) {
    var ref = parse_RefU(blob, 6);
    blob.l++;
    var cUse = blob.read_shift(1);
    length -= 8;
    return [parse_SharedParsedFormula(blob, length, opts), cUse, ref];
  }

  /* [MS-XLS] 2.4.4 TODO */
  function parse_Array(blob, length, opts) {
    var ref = parse_Ref(blob, 6);
    /* TODO: fAlwaysCalc */
    switch(opts.biff) {
      case 2: blob.l ++; length -= 7; break;
      case 3: case 4: blob.l += 2; length -= 8; break;
      default: blob.l += 6; length -= 12;
    }
    return [ref, parse_ArrayParsedFormula(blob, length, opts, ref)];
  }

  /* [MS-XLS] 2.4.173 */
  function parse_MTRSettings(blob) {
    var fMTREnabled = blob.read_shift(4) !== 0x00;
    var fUserSetThreadCount = blob.read_shift(4) !== 0x00;
    var cUserThreadCount = blob.read_shift(4);
    return [fMTREnabled, fUserSetThreadCount, cUserThreadCount];
  }

  /* [MS-XLS] 2.5.186 TODO: BIFF5 */
  function parse_NoteSh(blob, length, opts) {
    if(opts.biff < 8) return;
    var row = blob.read_shift(2), col = blob.read_shift(2);
    var flags = blob.read_shift(2), idObj = blob.read_shift(2);
    var stAuthor = parse_XLUnicodeString2(blob, 0, opts);
    if(opts.biff < 8) blob.read_shift(1);
    return [{r:row,c:col}, stAuthor, idObj, flags];
  }

  /* [MS-XLS] 2.4.179 */
  function parse_Note(blob, length, opts) {
    /* TODO: Support revisions */
    return parse_NoteSh(blob, length, opts);
  }

  /* [MS-XLS] 2.4.168 */
  function parse_MergeCells(blob, length) {
    var merges = [];
    var cmcs = blob.read_shift(2);
    while (cmcs--) merges.push(parse_Ref8U(blob,length));
    return merges;
  }
  function write_MergeCells(merges) {
    var o = new_buf(2 + merges.length * 8);
    o.write_shift(2, merges.length);
    for(var i = 0; i < merges.length; ++i) write_Ref8U(merges[i], o);
    return o;
  }

  /* [MS-XLS] 2.4.181 TODO: parse all the things! */
  function parse_Obj(blob, length, opts) {
    if(opts && opts.biff < 8) return parse_BIFF5Obj(blob, length, opts);
    var cmo = parse_FtCmo(blob, 22); // id, ot, flags
    var fts = parse_FtArray(blob, length-22, cmo[1]);
    return { cmo: cmo, ft:fts };
  }
  /* from older spec */
  var parse_BIFF5OT = [];
  parse_BIFF5OT[0x08] = function(blob, length) {
    var tgt = blob.l + length;
    blob.l += 10; // todo
    var cf = blob.read_shift(2);
    blob.l += 4;
    blob.l += 2; //var cbPictFmla = blob.read_shift(2);
    blob.l += 2;
    blob.l += 2; //var grbit = blob.read_shift(2);
    blob.l += 4;
    var cchName = blob.read_shift(1);
    blob.l += cchName; // TODO: stName
    blob.l = tgt; // TODO: fmla
    return { fmt:cf };
  };

  function parse_BIFF5Obj(blob, length, opts) {
    blob.l += 4; //var cnt = blob.read_shift(4);
    var ot = blob.read_shift(2);
    var id = blob.read_shift(2);
    var grbit = blob.read_shift(2);
    blob.l += 2; //var colL = blob.read_shift(2);
    blob.l += 2; //var dxL = blob.read_shift(2);
    blob.l += 2; //var rwT = blob.read_shift(2);
    blob.l += 2; //var dyT = blob.read_shift(2);
    blob.l += 2; //var colR = blob.read_shift(2);
    blob.l += 2; //var dxR = blob.read_shift(2);
    blob.l += 2; //var rwB = blob.read_shift(2);
    blob.l += 2; //var dyB = blob.read_shift(2);
    blob.l += 2; //var cbMacro = blob.read_shift(2);
    blob.l += 6;
    length -= 36;
    var fts = [];
    fts.push((parse_BIFF5OT[ot]||parsenoop)(blob, length, opts));
    return { cmo: [id, ot, grbit], ft:fts };
  }

  /* [MS-XLS] 2.4.329 TODO: parse properly */
  function parse_TxO(blob, length, opts) {
    var s = blob.l;
    var texts = "";
    try {
      blob.l += 4;
      var ot = (opts.lastobj||{cmo:[0,0]}).cmo[1];
      var controlInfo; // eslint-disable-line no-unused-vars
      if([0,5,7,11,12,14].indexOf(ot) == -1) blob.l += 6;
      else controlInfo = parse_ControlInfo(blob, 6, opts);
      var cchText = blob.read_shift(2);
      /*var cbRuns = */blob.read_shift(2);
      /*var ifntEmpty = */parseuint16(blob, 2);
      var len = blob.read_shift(2);
      blob.l += len;
      //var fmla = parse_ObjFmla(blob, s + length - blob.l);

      for(var i = 1; i < blob.lens.length-1; ++i) {
        if(blob.l-s != blob.lens[i]) throw new Error("TxO: bad continue record");
        var hdr = blob[blob.l];
        var t = parse_XLUnicodeStringNoCch(blob, blob.lens[i+1]-blob.lens[i]-1);
        texts += t;
        if(texts.length >= (hdr ? cchText : 2*cchText)) break;
      }
      if(texts.length !== cchText && texts.length !== cchText*2) {
        throw new Error("cchText: " + cchText + " != " + texts.length);
      }

      blob.l = s + length;
      /* [MS-XLS] 2.5.272 TxORuns */
//	var rgTxoRuns = [];
//	for(var j = 0; j != cbRuns/8-1; ++j) blob.l += 8;
//	var cchText2 = blob.read_shift(2);
//	if(cchText2 !== cchText) throw new Error("TxOLastRun mismatch: " + cchText2 + " " + cchText);
//	blob.l += 6;
//	if(s + length != blob.l) throw new Error("TxO " + (s + length) + ", at " + blob.l);
      return { t: texts };
    } catch(e) { blob.l = s + length; return { t: texts }; }
  }

  /* [MS-XLS] 2.4.140 */
  function parse_HLink(blob, length) {
    var ref = parse_Ref8U(blob, 8);
    blob.l += 16; /* CLSID */
    var hlink = parse_Hyperlink(blob, length-24);
    return [ref, hlink];
  }
  function write_HLink(hl) {
    var O = new_buf(24);
    var ref = decode_cell(hl[0]);
    O.write_shift(2, ref.r); O.write_shift(2, ref.r);
    O.write_shift(2, ref.c); O.write_shift(2, ref.c);
    var clsid = "d0 c9 ea 79 f9 ba ce 11 8c 82 00 aa 00 4b a9 0b".split(" ");
    for(var i = 0; i < 16; ++i) O.write_shift(1, parseInt(clsid[i], 16));
    return bconcat([O, write_Hyperlink(hl[1])]);
  }


  /* [MS-XLS] 2.4.141 */
  function parse_HLinkTooltip(blob, length) {
    blob.read_shift(2);
    var ref = parse_Ref8U(blob, 8);
    var wzTooltip = blob.read_shift((length-10)/2, 'dbcs-cont');
    wzTooltip = wzTooltip.replace(chr0,"");
    return [ref, wzTooltip];
  }
  function write_HLinkTooltip(hl) {
    var TT = hl[1].Tooltip;
    var O = new_buf(10 + 2 * (TT.length + 1));
    O.write_shift(2, 0x0800);
    var ref = decode_cell(hl[0]);
    O.write_shift(2, ref.r); O.write_shift(2, ref.r);
    O.write_shift(2, ref.c); O.write_shift(2, ref.c);
    for(var i = 0; i < TT.length; ++i) O.write_shift(2, TT.charCodeAt(i));
    O.write_shift(2, 0);
    return O;
  }

  /* [MS-XLS] 2.4.63 */
  function parse_Country(blob) {
    var o = [0,0], d;
    d = blob.read_shift(2); o[0] = CountryEnum[d] || d;
    d = blob.read_shift(2); o[1] = CountryEnum[d] || d;
    return o;
  }
  function write_Country(o) {
    if(!o) o = new_buf(4);
    o.write_shift(2, 0x01);
    o.write_shift(2, 0x01);
    return o;
  }

  /* [MS-XLS] 2.4.50 ClrtClient */
  function parse_ClrtClient(blob) {
    var ccv = blob.read_shift(2);
    var o = [];
    while(ccv-->0) o.push(parse_LongRGB(blob, 8));
    return o;
  }

  /* [MS-XLS] 2.4.188 */
  function parse_Palette(blob) {
    var ccv = blob.read_shift(2);
    var o = [];
    while(ccv-->0) o.push(parse_LongRGB(blob, 8));
    return o;
  }

  /* [MS-XLS] 2.4.354 */
  function parse_XFCRC(blob) {
    blob.l += 2;
    var o = {cxfs:0, crc:0};
    o.cxfs = blob.read_shift(2);
    o.crc = blob.read_shift(4);
    return o;
  }

  /* [MS-XLS] 2.4.53 TODO: parse flags */
  /* [MS-XLSB] 2.4.323 TODO: parse flags */
  function parse_ColInfo(blob, length, opts) {
    if(!opts.cellStyles) return parsenoop(blob, length);
    var w = opts && opts.biff >= 12 ? 4 : 2;
    var colFirst = blob.read_shift(w);
    var colLast = blob.read_shift(w);
    var coldx = blob.read_shift(w);
    var ixfe = blob.read_shift(w);
    var flags = blob.read_shift(2);
    if(w == 2) blob.l += 2;
    return {s:colFirst, e:colLast, w:coldx, ixfe:ixfe, flags:flags};
  }

  /* [MS-XLS] 2.4.257 */
  function parse_Setup(blob, length) {
    var o = {};
    if(length < 32) return o;
    blob.l += 16;
    o.header = parse_Xnum(blob, 8);
    o.footer = parse_Xnum(blob, 8);
    blob.l += 2;
    return o;
  }

  /* [MS-XLS] 2.4.261 */
  function parse_ShtProps(blob, length, opts) {
    var def = {area:false};
    if(opts.biff != 5) { blob.l += length; return def; }
    var d = blob.read_shift(1); blob.l += 3;
    if((d & 0x10)) def.area = true;
    return def;
  }

  /* [MS-XLS] 2.4.241 */
  function write_RRTabId(n) {
    var out = new_buf(2 * n);
    for(var i = 0; i < n; ++i) out.write_shift(2, i+1);
    return out;
  }

  var parse_Blank = parse_XLSCell; /* [MS-XLS] 2.4.20 Just the cell */
  var parse_Scl = parseuint16a; /* [MS-XLS] 2.4.247 num, den */
  var parse_String = parse_XLUnicodeString; /* [MS-XLS] 2.4.268 */

  /* --- Specific to versions before BIFF8 --- */
  function parse_ImData(blob) {
    var cf = blob.read_shift(2);
    var env = blob.read_shift(2);
    var lcb = blob.read_shift(4);
    var o = {fmt:cf, env:env, len:lcb, data:blob.slice(blob.l,blob.l+lcb)};
    blob.l += lcb;
    return o;
  }

  /* BIFF2_??? where ??? is the name from [XLS] */
  function parse_BIFF2STR(blob, length, opts) {
    var cell = parse_XLSCell(blob, 6);
    ++blob.l;
    var str = parse_XLUnicodeString2(blob, length-7, opts);
    cell.t = 'str';
    cell.val = str;
    return cell;
  }

  function parse_BIFF2NUM(blob) {
    var cell = parse_XLSCell(blob, 6);
    ++blob.l;
    var num = parse_Xnum(blob, 8);
    cell.t = 'n';
    cell.val = num;
    return cell;
  }
  function write_BIFF2NUM(r, c, val) {
    var out = new_buf(15);
    write_BIFF2Cell(out, r, c);
    out.write_shift(8, val, 'f');
    return out;
  }

  function parse_BIFF2INT(blob) {
    var cell = parse_XLSCell(blob, 6);
    ++blob.l;
    var num = blob.read_shift(2);
    cell.t = 'n';
    cell.val = num;
    return cell;
  }
  function write_BIFF2INT(r, c, val) {
    var out = new_buf(9);
    write_BIFF2Cell(out, r, c);
    out.write_shift(2, val);
    return out;
  }

  function parse_BIFF2STRING(blob) {
    var cch = blob.read_shift(1);
    if(cch === 0) { blob.l++; return ""; }
    return blob.read_shift(cch, 'sbcs-cont');
  }

  /* TODO: convert to BIFF8 font struct */
  function parse_BIFF2FONTXTRA(blob, length) {
    blob.l += 6; // unknown
    blob.l += 2; // font weight "bls"
    blob.l += 1; // charset
    blob.l += 3; // unknown
    blob.l += 1; // font family
    blob.l += length - 13;
  }

  /* TODO: parse rich text runs */
  function parse_RString(blob, length, opts) {
    var end = blob.l + length;
    var cell = parse_XLSCell(blob, 6);
    var cch = blob.read_shift(2);
    var str = parse_XLUnicodeStringNoCch(blob, cch, opts);
    blob.l = end;
    cell.t = 'str';
    cell.val = str;
    return cell;
  }
  /* from js-harb (C) 2014-present  SheetJS */
  var DBF = (function() {
    var dbf_codepage_map = {
      /* Code Pages Supported by Visual FoxPro */
      0x01:   437,           0x02:   850,
      0x03:  1252,           0x04: 10000,
      0x64:   852,           0x65:   866,
      0x66:   865,           0x67:   861,
      0x68:   895,           0x69:   620,
      0x6A:   737,           0x6B:   857,
      0x78:   950,           0x79:   949,
      0x7A:   936,           0x7B:   932,
      0x7C:   874,           0x7D:  1255,
      0x7E:  1256,           0x96: 10007,
      0x97: 10029,           0x98: 10006,
      0xC8:  1250,           0xC9:  1251,
      0xCA:  1254,           0xCB:  1253,

      /* shapefile DBF extension */
      0x00: 20127,           0x08:   865,
      0x09:   437,           0x0A:   850,
      0x0B:   437,           0x0D:   437,
      0x0E:   850,           0x0F:   437,
      0x10:   850,           0x11:   437,
      0x12:   850,           0x13:   932,
      0x14:   850,           0x15:   437,
      0x16:   850,           0x17:   865,
      0x18:   437,           0x19:   437,
      0x1A:   850,           0x1B:   437,
      0x1C:   863,           0x1D:   850,
      0x1F:   852,           0x22:   852,
      0x23:   852,           0x24:   860,
      0x25:   850,           0x26:   866,
      0x37:   850,           0x40:   852,
      0x4D:   936,           0x4E:   949,
      0x4F:   950,           0x50:   874,
      0x57:  1252,           0x58:  1252,
      0x59:  1252,

      0xFF: 16969
    };

    /* TODO: find an actual specification */
    function dbf_to_aoa(buf, opts) {
      var out = [];
      /* TODO: browser based */
      var d = (new_raw_buf(1));
      switch(opts.type) {
        case 'base64': d = s2a(Base64.decode(buf)); break;
        case 'binary': d = s2a(buf); break;
        case 'buffer':
        case 'array': d = buf; break;
      }
      prep_blob(d, 0);
      /* header */
      var ft = d.read_shift(1);
      var memo = false;
      var vfp = false, l7 = false;
      switch(ft) {
        case 0x02: case 0x03: break;
        case 0x30: vfp = true; memo = true; break;
        case 0x31: vfp = true; break;
        case 0x83: memo = true; break;
        case 0x8B: memo = true; break;
        case 0x8C: memo = true; l7 = true; break;
        case 0xF5: memo = true; break;
        default: throw new Error("DBF Unsupported Version: " + ft.toString(16));
      }
      var /*filedate = new Date(),*/ nrow = 0, fpos = 0;
      if(ft == 0x02) nrow = d.read_shift(2);
      /*filedate = new Date(d.read_shift(1) + 1900, d.read_shift(1) - 1, d.read_shift(1));*/d.l += 3;
      if(ft != 0x02) nrow = d.read_shift(4);
      if(ft != 0x02) fpos = d.read_shift(2);
      var rlen = d.read_shift(2);

      var /*flags = 0,*/ current_cp = 1252;
      if(ft != 0x02) {
        d.l+=16;
        /*flags = */d.read_shift(1);
        //if(memo && ((flags & 0x02) === 0)) throw new Error("DBF Flags " + flags.toString(16) + " ft " + ft.toString(16));

        /* codepage present in FoxPro */
        if(d[d.l] !== 0) current_cp = dbf_codepage_map[d[d.l]];
        d.l+=1;

        d.l+=2;
      }
      if(l7) d.l += 36;
      var fields = [], field = ({});
      var hend = fpos - 10 - (vfp ? 264 : 0), ww = l7 ? 32 : 11;
      while(ft == 0x02 ? d.l < d.length && d[d.l] != 0x0d: d.l < hend) {
        field = ({});
        field.name = cptable.utils.decode(current_cp, d.slice(d.l, d.l+ww)).replace(/[\u0000\r\n].*$/g,"");
        d.l += ww;
        field.type = String.fromCharCode(d.read_shift(1));
        if(ft != 0x02 && !l7) field.offset = d.read_shift(4);
        field.len = d.read_shift(1);
        if(ft == 0x02) field.offset = d.read_shift(2);
        field.dec = d.read_shift(1);
        if(field.name.length) fields.push(field);
        if(ft != 0x02) d.l += l7 ? 13 : 14;
        switch(field.type) {
          case 'B': // VFP Double
            if((!vfp || field.len != 8) && opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
            break;
          case 'G': // General
          case 'P': // Picture
            if(opts.WTF) console.log('Skipping ' + field.name + ':' + field.type);
            break;
          case 'C': // character
          case 'D': // date
          case 'F': // floating point
          case 'I': // long
          case 'L': // boolean
          case 'M': // memo
          case 'N': // number
          case 'O': // double
          case 'T': // datetime
          case 'Y': // currency
          case '0': // VFP _NullFlags
          case '@': // timestamp
          case '+': // autoincrement
            break;
          default: throw new Error('Unknown Field Type: ' + field.type);
        }
      }
      if(d[d.l] !== 0x0D) d.l = fpos-1;
      else if(ft == 0x02) d.l = 0x209;
      if(ft != 0x02) {
        if(d.read_shift(1) !== 0x0D) throw new Error("DBF Terminator not found " + d.l + " " + d[d.l]);
        d.l = fpos;
      }
      /* data */
      var R = 0, C = 0;
      out[0] = [];
      for(C = 0; C != fields.length; ++C) out[0][C] = fields[C].name;
      while(nrow-- > 0) {
        if(d[d.l] === 0x2A) { d.l+=rlen; continue; }
        ++d.l;
        out[++R] = []; C = 0;
        for(C = 0; C != fields.length; ++C) {
          var dd = d.slice(d.l, d.l+fields[C].len); d.l+=fields[C].len;
          prep_blob(dd, 0);
          var s = cptable.utils.decode(current_cp, dd);
          switch(fields[C].type) {
            case 'C':
              out[R][C] = cptable.utils.decode(current_cp, dd);
              out[R][C] = out[R][C].trim();
              break;
            case 'D':
              if(s.length === 8) out[R][C] = new Date(+s.slice(0,4), +s.slice(4,6)-1, +s.slice(6,8));
              else out[R][C] = s;
              break;
            case 'F': out[R][C] = parseFloat(s.trim()); break;
            case '+': case 'I': out[R][C] = l7 ? dd.read_shift(-4, 'i') ^ 0x80000000 : dd.read_shift(4, 'i'); break;
            case 'L': switch(s.toUpperCase()) {
              case 'Y': case 'T': out[R][C] = true; break;
              case 'N': case 'F': out[R][C] = false; break;
              case ' ': case '?': out[R][C] = false; break; /* NOTE: technically uninitialized */
              default: throw new Error("DBF Unrecognized L:|" + s + "|");
            } break;
            case 'M': /* TODO: handle memo files */
              if(!memo) throw new Error("DBF Unexpected MEMO for type " + ft.toString(16));
              out[R][C] = "##MEMO##" + (l7 ? parseInt(s.trim(), 10): dd.read_shift(4));
              break;
            case 'N': out[R][C] = +s.replace(/\u0000/g,"").trim(); break;
            case '@': out[R][C] = new Date(dd.read_shift(-8, 'f') - 0x388317533400); break;
            case 'T': out[R][C] = new Date((dd.read_shift(4) - 0x253D8C) * 0x5265C00 + dd.read_shift(4)); break;
            case 'Y': out[R][C] = dd.read_shift(4,'i')/1e4; break;
            case 'O': out[R][C] = -dd.read_shift(-8, 'f'); break;
            case 'B': if(vfp && fields[C].len == 8) { out[R][C] = dd.read_shift(8,'f'); break; }
            /* falls through */
            case 'G': case 'P': dd.l += fields[C].len; break;
            case '0':
              if(fields[C].name === '_NullFlags') break;
            /* falls through */
            default: throw new Error("DBF Unsupported data type " + fields[C].type);
          }
        }
      }
      if(ft != 0x02) if(d.l < d.length && d[d.l++] != 0x1A) throw new Error("DBF EOF Marker missing " + (d.l-1) + " of " + d.length + " " + d[d.l-1].toString(16));
      if(opts && opts.sheetRows) out = out.slice(0, opts.sheetRows);
      return out;
    }

    function dbf_to_sheet(buf, opts) {
      var o = opts || {};
      if(!o.dateNF) o.dateNF = "yyyymmdd";
      return aoa_to_sheet(dbf_to_aoa(buf, o), o);
    }

    function dbf_to_workbook(buf, opts) {
      try { return sheet_to_workbook(dbf_to_sheet(buf, opts), opts); }
      catch(e) { if(opts && opts.WTF) throw e; }
      return ({SheetNames:[],Sheets:{}});
    }

    var _RLEN = { 'B': 8, 'C': 250, 'L': 1, 'D': 8, '?': 0, '': 0 };
    function sheet_to_dbf(ws, opts) {
      var o = opts || {};
      if(o.type == "string") throw new Error("Cannot write DBF to JS string");
      var ba = buf_array();
      var aoa = sheet_to_json(ws, {header:1, cellDates:true});
      var headers = aoa[0], data = aoa.slice(1);
      var i = 0, j = 0, hcnt = 0, rlen = 1;
      for(i = 0; i < headers.length; ++i) {
        if(i == null) continue;
        ++hcnt;
        if(typeof headers[i] === 'number') headers[i] = headers[i].toString(10);
        if(typeof headers[i] !== 'string') throw new Error("DBF Invalid column name " + headers[i] + " |" + (typeof headers[i]) + "|");
        if(headers.indexOf(headers[i]) !== i) for(j=0; j<1024;++j)
          if(headers.indexOf(headers[i] + "_" + j) == -1) { headers[i] += "_" + j; break; }
      }
      var range = safe_decode_range(ws['!ref']);
      var coltypes = [];
      for(i = 0; i <= range.e.c - range.s.c; ++i) {
        var col = [];
        for(j=0; j < data.length; ++j) {
          if(data[j][i] != null) col.push(data[j][i]);
        }
        if(col.length == 0 || headers[i] == null) { coltypes[i] = '?'; continue; }
        var guess = '', _guess = '';
        for(j = 0; j < col.length; ++j) {
          switch(typeof col[j]) {
            /* TODO: check if L2 compat is desired */
            case 'number': _guess = 'B'; break;
            case 'string': _guess = 'C'; break;
            case 'boolean': _guess = 'L'; break;
            case 'object': _guess = col[j] instanceof Date ? 'D' : 'C'; break;
            default: _guess = 'C';
          }
          guess = guess && guess != _guess ? 'C' : _guess;
          if(guess == 'C') break;
        }
        rlen += _RLEN[guess] || 0;
        coltypes[i] = guess;
      }

      var h = ba.next(32);
      h.write_shift(4, 0x13021130);
      h.write_shift(4, data.length);
      h.write_shift(2, 296 + 32 * hcnt);
      h.write_shift(2, rlen);
      for(i=0; i < 4; ++i) h.write_shift(4, 0);
      h.write_shift(4, 0x00000300); // TODO: CP

      for(i = 0, j = 0; i < headers.length; ++i) {
        if(headers[i] == null) continue;
        var hf = ba.next(32);
        var _f = (headers[i].slice(-10) + "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00").slice(0, 11);
        hf.write_shift(1, _f, "sbcs");
        hf.write_shift(1, coltypes[i] == '?' ? 'C' : coltypes[i], "sbcs");
        hf.write_shift(4, j);
        hf.write_shift(1, _RLEN[coltypes[i]] || 0);
        hf.write_shift(1, 0);
        hf.write_shift(1, 0x02);
        hf.write_shift(4, 0);
        hf.write_shift(1, 0);
        hf.write_shift(4, 0);
        hf.write_shift(4, 0);
        j += _RLEN[coltypes[i]] || 0;
      }

      var hb = ba.next(264);
      hb.write_shift(4, 0x0000000D);
      for(i=0; i < 65;++i) hb.write_shift(4, 0x00000000);
      for(i=0; i < data.length; ++i) {
        var rout = ba.next(rlen);
        rout.write_shift(1, 0);
        for(j=0; j<headers.length; ++j) {
          if(headers[j] == null) continue;
          switch(coltypes[j]) {
            case 'L': rout.write_shift(1, data[i][j] == null ? 0x3F : data[i][j] ? 0x54 : 0x46); break;
            case 'B': rout.write_shift(8, data[i][j]||0, 'f'); break;
            case 'D':
              if(!data[i][j]) rout.write_shift(8, "00000000", "sbcs");
              else {
                rout.write_shift(4, ("0000"+data[i][j].getFullYear()).slice(-4), "sbcs");
                rout.write_shift(2, ("00"+(data[i][j].getMonth()+1)).slice(-2), "sbcs");
                rout.write_shift(2, ("00"+data[i][j].getDate()).slice(-2), "sbcs");
              } break;
            case 'C':
              var _s = String(data[i][j]||"");
              rout.write_shift(1, _s, "sbcs");
              for(hcnt=0; hcnt < 250-_s.length; ++hcnt) rout.write_shift(1, 0x20); break;
          }
        }
        // data
      }
      ba.next(1).write_shift(1, 0x1A);
      return ba.end();
    }
    return {
      to_workbook: dbf_to_workbook,
      to_sheet: dbf_to_sheet,
      from_sheet: sheet_to_dbf
    };
  })();

  var SYLK = (function() {
    /* TODO: find an actual specification */
    function sylk_to_aoa(d, opts) {
      switch(opts.type) {
        case 'base64': return sylk_to_aoa_str(Base64.decode(d), opts);
        case 'binary': return sylk_to_aoa_str(d, opts);
        case 'buffer': return sylk_to_aoa_str(d.toString('binary'), opts);
        case 'array': return sylk_to_aoa_str(cc2str(d), opts);
      }
      throw new Error("Unrecognized type " + opts.type);
    }
    function sylk_to_aoa_str(str, opts) {
      var records = str.split(/[\n\r]+/), R = -1, C = -1, ri = 0, rj = 0, arr = [];
      var formats = [];
      var next_cell_format = null;
      var sht = {}, rowinfo = [], colinfo = [], cw = [];
      var Mval = 0, j;
      for (; ri !== records.length; ++ri) {
        Mval = 0;
        var rstr=records[ri].trim();
        var record=rstr.replace(/;;/g, "\u0001").split(";").map(function(x) { return x.replace(/\u0001/g, ";"); });
        var RT=record[0], val;
        if(rstr.length > 0) switch(RT) {
          case 'ID': break; /* header */
          case 'E': break; /* EOF */
          case 'B': break; /* dimensions */
          case 'O': break; /* options? */
          case 'P':
            if(record[1].charAt(0) == 'P')
              formats.push(rstr.slice(3).replace(/;;/g, ";"));
            break;
          case 'C':
            var C_seen_K = false, C_seen_X = false;
            for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
              case 'X': C = parseInt(record[rj].slice(1))-1; C_seen_X = true; break;
              case 'Y':
                R = parseInt(record[rj].slice(1))-1; if(!C_seen_X) C = 0;
                for(j = arr.length; j <= R; ++j) arr[j] = [];
                break;
              case 'K':
                val = record[rj].slice(1);
                if(val.charAt(0) === '"') val = val.slice(1,val.length - 1);
                else if(val === 'TRUE') val = true;
                else if(val === 'FALSE') val = false;
                else if(!isNaN(fuzzynum(val))) {
                  val = fuzzynum(val);
                  if(next_cell_format !== null && SSF.is_date(next_cell_format)) val = numdate(val);
                } else if(!isNaN(fuzzydate(val).getDate())) {
                  val = parseDate(val);
                }
                if(typeof cptable !== 'undefined' && typeof val == "string" && ((opts||{}).type != "string") && (opts||{}).codepage) val = cptable.utils.decode(opts.codepage, val);
                C_seen_K = true;
                break;
              case 'E':
                var formula = rc_to_a1(record[rj].slice(1), {r:R,c:C});
                arr[R][C] = [arr[R][C], formula];
                break;
              default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
            }
            if(C_seen_K) { arr[R][C] = val; next_cell_format = null; }
            break;
          case 'F':
            var F_seen = 0;
            for(rj=1; rj<record.length; ++rj) switch(record[rj].charAt(0)) {
              case 'X': C = parseInt(record[rj].slice(1))-1; ++F_seen; break;
              case 'Y':
                R = parseInt(record[rj].slice(1))-1; /*C = 0;*/
                for(j = arr.length; j <= R; ++j) arr[j] = [];
                break;
              case 'M': Mval = parseInt(record[rj].slice(1)) / 20; break;
              case 'F': break; /* ??? */
              case 'G': break; /* hide grid */
              case 'P':
                next_cell_format = formats[parseInt(record[rj].slice(1))];
                break;
              case 'S': break; /* cell style */
              case 'D': break; /* column */
              case 'N': break; /* font */
              case 'W':
                cw = record[rj].slice(1).split(" ");
                for(j = parseInt(cw[0], 10); j <= parseInt(cw[1], 10); ++j) {
                  Mval = parseInt(cw[2], 10);
                  colinfo[j-1] = Mval === 0 ? {hidden:true}: {wch:Mval}; process_col(colinfo[j-1]);
                } break;
              case 'C': /* default column format */
                C = parseInt(record[rj].slice(1))-1;
                if(!colinfo[C]) colinfo[C] = {};
                break;
              case 'R': /* row properties */
                R = parseInt(record[rj].slice(1))-1;
                if(!rowinfo[R]) rowinfo[R] = {};
                if(Mval > 0) { rowinfo[R].hpt = Mval; rowinfo[R].hpx = pt2px(Mval); }
                else if(Mval === 0) rowinfo[R].hidden = true;
                break;
              default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
            }
            if(F_seen < 1) next_cell_format = null; break;
          default: if(opts && opts.WTF) throw new Error("SYLK bad record " + rstr);
        }
      }
      if(rowinfo.length > 0) sht['!rows'] = rowinfo;
      if(colinfo.length > 0) sht['!cols'] = colinfo;
      if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
      return [arr, sht];
    }

    function sylk_to_sheet(d, opts) {
      var aoasht = sylk_to_aoa(d, opts);
      var aoa = aoasht[0], ws = aoasht[1];
      var o = aoa_to_sheet(aoa, opts);
      keys(ws).forEach(function(k) { o[k] = ws[k]; });
      return o;
    }

    function sylk_to_workbook(d, opts) { return sheet_to_workbook(sylk_to_sheet(d, opts), opts); }

    function write_ws_cell_sylk(cell, ws, R, C) {
      var o = "C;Y" + (R+1) + ";X" + (C+1) + ";K";
      switch(cell.t) {
        case 'n':
          o += (cell.v||0);
          if(cell.f && !cell.F) o += ";E" + a1_to_rc(cell.f, {r:R, c:C}); break;
        case 'b': o += cell.v ? "TRUE" : "FALSE"; break;
        case 'e': o += cell.w || cell.v; break;
        case 'd': o += '"' + (cell.w || cell.v) + '"'; break;
        case 's': o += '"' + cell.v.replace(/"/g,"") + '"'; break;
      }
      return o;
    }

    function write_ws_cols_sylk(out, cols) {
      cols.forEach(function(col, i) {
        var rec = "F;W" + (i+1) + " " + (i+1) + " ";
        if(col.hidden) rec += "0";
        else {
          if(typeof col.width == 'number') col.wpx = width2px(col.width);
          if(typeof col.wpx == 'number') col.wch = px2char(col.wpx);
          if(typeof col.wch == 'number') rec += Math.round(col.wch);
        }
        if(rec.charAt(rec.length - 1) != " ") out.push(rec);
      });
    }

    function write_ws_rows_sylk(out, rows) {
      rows.forEach(function(row, i) {
        var rec = "F;";
        if(row.hidden) rec += "M0;";
        else if(row.hpt) rec += "M" + 20 * row.hpt + ";";
        else if(row.hpx) rec += "M" + 20 * px2pt(row.hpx) + ";";
        if(rec.length > 2) out.push(rec + "R" + (i+1));
      });
    }

    function sheet_to_sylk(ws, opts) {
      var preamble = ["ID;PWXL;N;E"], o = [];
      var r = safe_decode_range(ws['!ref']), cell;
      var dense = Array.isArray(ws);
      var RS = "\r\n";

      preamble.push("P;PGeneral");
      preamble.push("F;P0;DG0G8;M255");
      if(ws['!cols']) write_ws_cols_sylk(preamble, ws['!cols']);
      if(ws['!rows']) write_ws_rows_sylk(preamble, ws['!rows']);

      preamble.push("B;Y" + (r.e.r - r.s.r + 1) + ";X" + (r.e.c - r.s.c + 1) + ";D" + [r.s.c,r.s.r,r.e.c,r.e.r].join(" "));
      for(var R = r.s.r; R <= r.e.r; ++R) {
        for(var C = r.s.c; C <= r.e.c; ++C) {
          var coord = encode_cell({r:R,c:C});
          cell = dense ? (ws[R]||[])[C]: ws[coord];
          if(!cell || (cell.v == null && (!cell.f || cell.F))) continue;
          o.push(write_ws_cell_sylk(cell, ws, R, C, opts));
        }
      }
      return preamble.join(RS) + RS + o.join(RS) + RS + "E" + RS;
    }

    return {
      to_workbook: sylk_to_workbook,
      to_sheet: sylk_to_sheet,
      from_sheet: sheet_to_sylk
    };
  })();

  var DIF = (function() {
    function dif_to_aoa(d, opts) {
      switch(opts.type) {
        case 'base64': return dif_to_aoa_str(Base64.decode(d), opts);
        case 'binary': return dif_to_aoa_str(d, opts);
        case 'buffer': return dif_to_aoa_str(d.toString('binary'), opts);
        case 'array': return dif_to_aoa_str(cc2str(d), opts);
      }
      throw new Error("Unrecognized type " + opts.type);
    }
    function dif_to_aoa_str(str, opts) {
      var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
      for (; ri !== records.length; ++ri) {
        if (records[ri].trim() === 'BOT') { arr[++R] = []; C = 0; continue; }
        if (R < 0) continue;
        var metadata = records[ri].trim().split(",");
        var type = metadata[0], value = metadata[1];
        ++ri;
        var data = records[ri].trim();
        switch (+type) {
          case -1:
            if (data === 'BOT') { arr[++R] = []; C = 0; continue; }
            else if (data !== 'EOD') throw new Error("Unrecognized DIF special command " + data);
            break;
          case 0:
            if(data === 'TRUE') arr[R][C] = true;
            else if(data === 'FALSE') arr[R][C] = false;
            else if(!isNaN(fuzzynum(value))) arr[R][C] = fuzzynum(value);
            else if(!isNaN(fuzzydate(value).getDate())) arr[R][C] = parseDate(value);
            else arr[R][C] = value;
            ++C; break;
          case 1:
            data = data.slice(1,data.length-1);
            arr[R][C++] = data !== '' ? data : null;
            break;
        }
        if (data === 'EOD') break;
      }
      if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
      return arr;
    }

    function dif_to_sheet(str, opts) { return aoa_to_sheet(dif_to_aoa(str, opts), opts); }
    function dif_to_workbook(str, opts) { return sheet_to_workbook(dif_to_sheet(str, opts), opts); }

    var sheet_to_dif = (function() {
      var push_field = function pf(o, topic, v, n, s) {
        o.push(topic);
        o.push(v + "," + n);
        o.push('"' + s.replace(/"/g,'""') + '"');
      };
      var push_value = function po(o, type, v, s) {
        o.push(type + "," + v);
        o.push(type == 1 ? '"' + s.replace(/"/g,'""') + '"' : s);
      };
      return function sheet_to_dif(ws) {
        var o = [];
        var r = safe_decode_range(ws['!ref']), cell;
        var dense = Array.isArray(ws);
        push_field(o, "TABLE", 0, 1, "sheetjs");
        push_field(o, "VECTORS", 0, r.e.r - r.s.r + 1,"");
        push_field(o, "TUPLES", 0, r.e.c - r.s.c + 1,"");
        push_field(o, "DATA", 0, 0,"");
        for(var R = r.s.r; R <= r.e.r; ++R) {
          push_value(o, -1, 0, "BOT");
          for(var C = r.s.c; C <= r.e.c; ++C) {
            var coord = encode_cell({r:R,c:C});
            cell = dense ? (ws[R]||[])[C] : ws[coord];
            if(!cell) { push_value(o, 1, 0, ""); continue;}
            switch(cell.t) {
              case 'n':
                var val = DIF_XL ? cell.w : cell.v;
                if(!val && cell.v != null) val = cell.v;
                if(val == null) {
                  if(DIF_XL && cell.f && !cell.F) push_value(o, 1, 0, "=" + cell.f);
                  else push_value(o, 1, 0, "");
                }
                else push_value(o, 0, val, "V");
                break;
              case 'b':
                push_value(o, 0, cell.v ? 1 : 0, cell.v ? "TRUE" : "FALSE");
                break;
              case 's':
                push_value(o, 1, 0, (!DIF_XL || isNaN(cell.v)) ? cell.v : '="' + cell.v + '"');
                break;
              case 'd':
                if(!cell.w) cell.w = SSF.format(cell.z || SSF._table[14], datenum(parseDate(cell.v)));
                if(DIF_XL) push_value(o, 0, cell.w, "V");
                else push_value(o, 1, 0, cell.w);
                break;
              default: push_value(o, 1, 0, "");
            }
          }
        }
        push_value(o, -1, 0, "EOD");
        var RS = "\r\n";
        var oo = o.join(RS);
        //while((oo.length & 0x7F) != 0) oo += "\0";
        return oo;
      };
    })();
    return {
      to_workbook: dif_to_workbook,
      to_sheet: dif_to_sheet,
      from_sheet: sheet_to_dif
    };
  })();

  var ETH = (function() {
    function decode(s) { return s.replace(/\\b/g,"\\").replace(/\\c/g,":").replace(/\\n/g,"\n"); }
    function encode(s) { return s.replace(/\\/g, "\\b").replace(/:/g, "\\c").replace(/\n/g,"\\n"); }

    function eth_to_aoa(str, opts) {
      var records = str.split('\n'), R = -1, C = -1, ri = 0, arr = [];
      for (; ri !== records.length; ++ri) {
        var record = records[ri].trim().split(":");
        if(record[0] !== 'cell') continue;
        var addr = decode_cell(record[1]);
        if(arr.length <= addr.r) for(R = arr.length; R <= addr.r; ++R) if(!arr[R]) arr[R] = [];
        R = addr.r; C = addr.c;
        switch(record[2]) {
          case 't': arr[R][C] = decode(record[3]); break;
          case 'v': arr[R][C] = +record[3]; break;
          case 'vtf': var _f = record[record.length - 1];
          /* falls through */
          case 'vtc':
            switch(record[3]) {
              case 'nl': arr[R][C] = +record[4] ? true : false; break;
              default: arr[R][C] = +record[4]; break;
            }
            if(record[2] == 'vtf') arr[R][C] = [arr[R][C], _f];
        }
      }
      if(opts && opts.sheetRows) arr = arr.slice(0, opts.sheetRows);
      return arr;
    }

    function eth_to_sheet(d, opts) { return aoa_to_sheet(eth_to_aoa(d, opts), opts); }
    function eth_to_workbook(d, opts) { return sheet_to_workbook(eth_to_sheet(d, opts), opts); }

    var header = [
      "socialcalc:version:1.5",
      "MIME-Version: 1.0",
      "Content-Type: multipart/mixed; boundary=SocialCalcSpreadsheetControlSave"
    ].join("\n");

    var sep = [
      "--SocialCalcSpreadsheetControlSave",
      "Content-type: text/plain; charset=UTF-8"
    ].join("\n") + "\n";

    /* TODO: the other parts */
    var meta = [
      "# SocialCalc Spreadsheet Control Save",
      "part:sheet"
    ].join("\n");

    var end = "--SocialCalcSpreadsheetControlSave--";

    function sheet_to_eth_data(ws) {
      if(!ws || !ws['!ref']) return "";
      var o = [], oo = [], cell, coord = "";
      var r = decode_range(ws['!ref']);
      var dense = Array.isArray(ws);
      for(var R = r.s.r; R <= r.e.r; ++R) {
        for(var C = r.s.c; C <= r.e.c; ++C) {
          coord = encode_cell({r:R,c:C});
          cell = dense ? (ws[R]||[])[C] : ws[coord];
          if(!cell || cell.v == null || cell.t === 'z') continue;
          oo = ["cell", coord, 't'];
          switch(cell.t) {
            case 's': case 'str': oo.push(encode(cell.v)); break;
            case 'n':
              if(!cell.f) { oo[2]='v'; oo[3]=cell.v; }
              else { oo[2]='vtf'; oo[3]='n'; oo[4]=cell.v; oo[5]=encode(cell.f); }
              break;
            case 'b':
              oo[2] = 'vt'+(cell.f?'f':'c'); oo[3]='nl'; oo[4]=cell.v?"1":"0";
              oo[5] = encode(cell.f||(cell.v?'TRUE':'FALSE'));
              break;
            case 'd':
              var t = datenum(parseDate(cell.v));
              oo[2] = 'vtc'; oo[3] = 'nd'; oo[4] = ""+t;
              oo[5] = cell.w || SSF.format(cell.z || SSF._table[14], t);
              break;
            case 'e': continue;
          }
          o.push(oo.join(":"));
        }
      }
      o.push("sheet:c:" + (r.e.c-r.s.c+1) + ":r:" + (r.e.r-r.s.r+1) + ":tvf:1");
      o.push("valueformat:1:text-wiki");
      //o.push("copiedfrom:" + ws['!ref']); // clipboard only
      return o.join("\n");
    }

    function sheet_to_eth(ws) {
      return [header, sep, meta, sep, sheet_to_eth_data(ws), end].join("\n");
      // return ["version:1.5", sheet_to_eth_data(ws)].join("\n"); // clipboard form
    }

    return {
      to_workbook: eth_to_workbook,
      to_sheet: eth_to_sheet,
      from_sheet: sheet_to_eth
    };
  })();

  var PRN = (function() {
    function set_text_arr(data, arr, R, C, o) {
      if(o.raw) arr[R][C] = data;
      else if(data === 'TRUE') arr[R][C] = true;
      else if(data === 'FALSE') arr[R][C] = false;
      else if(data === ""){/* empty */}
      else if(!isNaN(fuzzynum(data))) arr[R][C] = fuzzynum(data);
      else if(!isNaN(fuzzydate(data).getDate())) arr[R][C] = parseDate(data);
      else arr[R][C] = data;
    }

    function prn_to_aoa_str(f, opts) {
      var o = opts || {};
      var arr = ([]);
      if(!f || f.length === 0) return arr;
      var lines = f.split(/[\r\n]/);
      var L = lines.length - 1;
      while(L >= 0 && lines[L].length === 0) --L;
      var start = 10, idx = 0;
      var R = 0;
      for(; R <= L; ++R) {
        idx = lines[R].indexOf(" ");
        if(idx == -1) idx = lines[R].length; else idx++;
        start = Math.max(start, idx);
      }
      for(R = 0; R <= L; ++R) {
        arr[R] = [];
        /* TODO: confirm that widths are always 10 */
        var C = 0;
        set_text_arr(lines[R].slice(0, start).trim(), arr, R, C, o);
        for(C = 1; C <= (lines[R].length - start)/10 + 1; ++C)
          set_text_arr(lines[R].slice(start+(C-1)*10,start+C*10).trim(),arr,R,C,o);
      }
      if(o.sheetRows) arr = arr.slice(0, o.sheetRows);
      return arr;
    }

    // List of accepted CSV separators
    var guess_seps = {
      0x2C: ',',
      0x09: "\t",
      0x3B: ';'
    };

    // CSV separator weights to be used in case of equal numbers
    var guess_sep_weights = {
      0x2C: 3,
      0x09: 2,
      0x3B: 1
    };

    function guess_sep(str) {
      var cnt = {}, instr = false, end = 0, cc = 0;
      for(;end < str.length;++end) {
        if((cc=str.charCodeAt(end)) == 0x22) instr = !instr;
        else if(!instr && cc in guess_seps) cnt[cc] = (cnt[cc]||0)+1;
      }

      cc = [];
      for(end in cnt) if ( cnt.hasOwnProperty(end) ) {
        cc.push([ cnt[end], end ]);
      }

      if ( !cc.length ) {
        cnt = guess_sep_weights;
        for(end in cnt) if ( cnt.hasOwnProperty(end) ) {
          cc.push([ cnt[end], end ]);
        }
      }

      cc.sort(function(a, b) { return a[0] - b[0] || guess_sep_weights[a[1]] - guess_sep_weights[b[1]]; });

      return guess_seps[cc.pop()[1]];
    }

    function dsv_to_sheet_str(str, opts) {
      var o = opts || {};
      var sep = "";
      if(DENSE != null && o.dense == null) o.dense = DENSE;
      var ws = o.dense ? ([]) : ({});
      var range = ({s: {c:0, r:0}, e: {c:0, r:0}});

      if(str.slice(0,4) == "sep=" && str.charCodeAt(5) == 10) { sep = str.charAt(4); str = str.slice(6); }
      else sep = guess_sep(str.slice(0,1024));
      var R = 0, C = 0, v = 0;
      var start = 0, end = 0, sepcc = sep.charCodeAt(0), instr = false, cc=0;
      str = str.replace(/\r\n/mg, "\n");
      var _re = o.dateNF != null ? dateNF_regex(o.dateNF) : null;
      function finish_cell() {
        var s = str.slice(start, end);
        var cell = ({});
        if(s.charAt(0) == '"' && s.charAt(s.length - 1) == '"') s = s.slice(1,-1).replace(/""/g,'"');
        if(s.length === 0) cell.t = 'z';
        else if(o.raw) { cell.t = 's'; cell.v = s; }
        else if(s.trim().length === 0) { cell.t = 's'; cell.v = s; }
        else if(s.charCodeAt(0) == 0x3D) {
          if(s.charCodeAt(1) == 0x22 && s.charCodeAt(s.length - 1) == 0x22) { cell.t = 's'; cell.v = s.slice(2,-1).replace(/""/g,'"'); }
          else if(fuzzyfmla(s)) { cell.t = 'n'; cell.f = s.slice(1); }
          else { cell.t = 's'; cell.v = s; } }
        else if(s == "TRUE") { cell.t = 'b'; cell.v = true; }
        else if(s == "FALSE") { cell.t = 'b'; cell.v = false; }
        else if(!isNaN(v = fuzzynum(s))) { cell.t = 'n'; if(o.cellText !== false) cell.w = s; cell.v = v; }
        else if(!isNaN(fuzzydate(s).getDate()) || _re && s.match(_re)) {
          cell.z = o.dateNF || SSF._table[14];
          var k = 0;
          if(_re && s.match(_re)){ s=dateNF_fix(s, o.dateNF, (s.match(_re)||[])); k=1; }
          if(o.cellDates) { cell.t = 'd'; cell.v = parseDate(s, k); }
          else { cell.t = 'n'; cell.v = datenum(parseDate(s, k)); }
          if(o.cellText !== false) cell.w = SSF.format(cell.z, cell.v instanceof Date ? datenum(cell.v):cell.v);
          if(!o.cellNF) delete cell.z;
        } else {
          cell.t = 's';
          cell.v = s;
        }
        if(cell.t == 'z'){}
        else if(o.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = cell; }
        else ws[encode_cell({c:C,r:R})] = cell;
        start = end+1;
        if(range.e.c < C) range.e.c = C;
        if(range.e.r < R) range.e.r = R;
        if(cc == sepcc) ++C; else { C = 0; ++R; if(o.sheetRows && o.sheetRows <= R) return true; }
      }
      outer: for(;end < str.length;++end) switch((cc=str.charCodeAt(end))) {
        case 0x22: instr = !instr; break;
        case sepcc: case 0x0a: case 0x0d: if(!instr && finish_cell()) break outer; break;
        default: break;
      }
      if(end - start > 0) finish_cell();

      ws['!ref'] = encode_range(range);
      return ws;
    }

    function prn_to_sheet_str(str, opts) {
      if(str.slice(0,4) == "sep=") return dsv_to_sheet_str(str, opts);
      if(str.indexOf("\t") >= 0 || str.indexOf(",") >= 0 || str.indexOf(";") >= 0) return dsv_to_sheet_str(str, opts);
      return aoa_to_sheet(prn_to_aoa_str(str, opts), opts);
    }

    function prn_to_sheet(d, opts) {
      var str = "", bytes = opts.type == 'string' ? [0,0,0,0] : firstbyte(d, opts);
      switch(opts.type) {
        case 'base64': str = Base64.decode(d); break;
        case 'binary': str = d; break;
        case 'buffer':
          if(opts.codepage == 65001) str = d.toString('utf8');
          else if(opts.codepage && typeof cptable !== 'undefined') str = cptable.utils.decode(opts.codepage, d);
          else str = d.toString('binary');
          break;
        case 'array': str = cc2str(d); break;
        case 'string': str = d; break;
        default: throw new Error("Unrecognized type " + opts.type);
      }
      if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str.slice(3));
      else if((opts.type == 'binary') && typeof cptable !== 'undefined' && opts.codepage)  str = cptable.utils.decode(opts.codepage, cptable.utils.encode(1252,str));
      if(str.slice(0,19) == "socialcalc:version:") return ETH.to_sheet(opts.type == 'string' ? str : utf8read(str), opts);
      return prn_to_sheet_str(str, opts);
    }

    function prn_to_workbook(d, opts) { return sheet_to_workbook(prn_to_sheet(d, opts), opts); }

    function sheet_to_prn(ws) {
      var o = [];
      var r = safe_decode_range(ws['!ref']), cell;
      var dense = Array.isArray(ws);
      for(var R = r.s.r; R <= r.e.r; ++R) {
        var oo = [];
        for(var C = r.s.c; C <= r.e.c; ++C) {
          var coord = encode_cell({r:R,c:C});
          cell = dense ? (ws[R]||[])[C] : ws[coord];
          if(!cell || cell.v == null) { oo.push("          "); continue; }
          var w = (cell.w || (format_cell(cell), cell.w) || "").slice(0,10);
          while(w.length < 10) w += " ";
          oo.push(w + (C === 0 ? " " : ""));
        }
        o.push(oo.join(""));
      }
      return o.join("\n");
    }

    return {
      to_workbook: prn_to_workbook,
      to_sheet: prn_to_sheet,
      from_sheet: sheet_to_prn
    };
  })();

  /* Excel defaults to SYLK but warns if data is not valid */
  function read_wb_ID(d, opts) {
    var o = opts || {}, OLD_WTF = !!o.WTF; o.WTF = true;
    try {
      var out = SYLK.to_workbook(d, o);
      o.WTF = OLD_WTF;
      return out;
    } catch(e) {
      o.WTF = OLD_WTF;
      if(!e.message.match(/SYLK bad record ID/) && OLD_WTF) throw e;
      return PRN.to_workbook(d, opts);
    }
  }
  var WK_ = (function() {
    function lotushopper(data, cb, opts) {
      if(!data) return;
      prep_blob(data, data.l || 0);
      var Enum = opts.Enum || WK1Enum;
      while(data.l < data.length) {
        var RT = data.read_shift(2);
        var R = Enum[RT] || Enum[0xFF];
        var length = data.read_shift(2);
        var tgt = data.l + length;
        var d = (R.f||parsenoop)(data, length, opts);
        data.l = tgt;
        if(cb(d, R.n, RT)) return;
      }
    }

    function lotus_to_workbook(d, opts) {
      switch(opts.type) {
        case 'base64': return lotus_to_workbook_buf(s2a(Base64.decode(d)), opts);
        case 'binary': return lotus_to_workbook_buf(s2a(d), opts);
        case 'buffer':
        case 'array': return lotus_to_workbook_buf(d, opts);
      }
      throw "Unsupported type " + opts.type;
    }

    function lotus_to_workbook_buf(d, opts) {
      if(!d) return d;
      var o = opts || {};
      if(DENSE != null && o.dense == null) o.dense = DENSE;
      var s = ((o.dense ? [] : {})), n = "Sheet1", sidx = 0;
      var sheets = {}, snames = [n];

      var refguess = {s: {r:0, c:0}, e: {r:0, c:0} };
      var sheetRows = o.sheetRows || 0;

      if(d[2] == 0x02) o.Enum = WK1Enum;
      else if(d[2] == 0x1a) o.Enum = WK3Enum;
      else if(d[2] == 0x0e) { o.Enum = WK3Enum; o.qpro = true; d.l = 0; }
      else throw new Error("Unrecognized LOTUS BOF " + d[2]);
      lotushopper(d, function(val, Rn, RT) {
        if(d[2] == 0x02) switch(RT) {
          case 0x00:
            o.vers = val;
            if(val >= 0x1000) o.qpro = true;
            break;
          case 0x06: refguess = val; break; /* RANGE */
          case 0x0F: /* LABEL */
            if(!o.qpro) val[1].v = val[1].v.slice(1);
          /* falls through */
          case 0x0D: /* INTEGER */
          case 0x0E: /* NUMBER */
          case 0x10: /* FORMULA */
          case 0x33: /* STRING */
            /* TODO: actual translation of the format code */
            if(RT == 0x0E && (val[2] & 0x70) == 0x70 && (val[2] & 0x0F) > 1 && (val[2] & 0x0F) < 15) {
              val[1].z = o.dateNF || SSF._table[14];
              if(o.cellDates) { val[1].t = 'd'; val[1].v = numdate(val[1].v); }
            }
            if(o.dense) {
              if(!s[val[0].r]) s[val[0].r] = [];
              s[val[0].r][val[0].c] = val[1];
            } else s[encode_cell(val[0])] = val[1];
            break;
        } else switch(RT) {
          case 0x16: /* LABEL16 */
            val[1].v = val[1].v.slice(1);
          /* falls through */
          case 0x17: /* NUMBER17 */
          case 0x18: /* NUMBER18 */
          case 0x19: /* FORMULA19 */
          case 0x25: /* NUMBER25 */
          case 0x27: /* NUMBER27 */
          case 0x28: /* FORMULA28 */
            if(val[3] > sidx) {
              s["!ref"] = encode_range(refguess);
              sheets[n] = s;
              s = (o.dense ? [] : {});
              refguess = {s: {r:0, c:0}, e: {r:0, c:0} };
              sidx = val[3]; n = "Sheet" + (sidx + 1);
              snames.push(n);
            }
            if(sheetRows > 0 && val[0].r >= sheetRows) break;
            if(o.dense) {
              if(!s[val[0].r]) s[val[0].r] = [];
              s[val[0].r][val[0].c] = val[1];
            } else s[encode_cell(val[0])] = val[1];
            if(refguess.e.c < val[0].c) refguess.e.c = val[0].c;
            if(refguess.e.r < val[0].r) refguess.e.r = val[0].r;
            break;
          default: break;
        }
      }, o);

      s["!ref"] = encode_range(refguess);
      sheets[n] = s;
      return { SheetNames: snames, Sheets:sheets };
    }

    function parse_RANGE(blob) {
      var o = {s:{c:0,r:0},e:{c:0,r:0}};
      o.s.c = blob.read_shift(2);
      o.s.r = blob.read_shift(2);
      o.e.c = blob.read_shift(2);
      o.e.r = blob.read_shift(2);
      if(o.s.c == 0xFFFF) o.s.c = o.e.c = o.s.r = o.e.r = 0;
      return o;
    }

    function parse_cell(blob, length, opts) {
      var o = [{c:0,r:0}, {t:'n',v:0}, 0];
      if(opts.qpro && opts.vers != 0x5120) {
        o[0].c = blob.read_shift(1);
        blob.l++;
        o[0].r = blob.read_shift(2);
        blob.l+=2;
      } else {
        o[2] = blob.read_shift(1);
        o[0].c = blob.read_shift(2); o[0].r = blob.read_shift(2);
      }
      return o;
    }

    function parse_LABEL(blob, length, opts) {
      var tgt = blob.l + length;
      var o = parse_cell(blob, length, opts);
      o[1].t = 's';
      if(opts.vers == 0x5120) {
        blob.l++;
        var len = blob.read_shift(1);
        o[1].v = blob.read_shift(len, 'utf8');
        return o;
      }
      if(opts.qpro) blob.l++;
      o[1].v = blob.read_shift(tgt - blob.l, 'cstr');
      return o;
    }

    function parse_INTEGER(blob, length, opts) {
      var o = parse_cell(blob, length, opts);
      o[1].v = blob.read_shift(2, 'i');
      return o;
    }

    function parse_NUMBER(blob, length, opts) {
      var o = parse_cell(blob, length, opts);
      o[1].v = blob.read_shift(8, 'f');
      return o;
    }

    function parse_FORMULA(blob, length, opts) {
      var tgt = blob.l + length;
      var o = parse_cell(blob, length, opts);
      /* TODO: formula */
      o[1].v = blob.read_shift(8, 'f');
      if(opts.qpro) blob.l = tgt;
      else {
        var flen = blob.read_shift(2);
        blob.l += flen;
      }
      return o;
    }

    function parse_cell_3(blob) {
      var o = [{c:0,r:0}, {t:'n',v:0}, 0];
      o[0].r = blob.read_shift(2); o[3] = blob[blob.l++]; o[0].c = blob[blob.l++];
      return o;
    }

    function parse_LABEL_16(blob, length) {
      var o = parse_cell_3(blob, length);
      o[1].t = 's';
      o[1].v = blob.read_shift(length - 4, 'cstr');
      return o;
    }

    function parse_NUMBER_18(blob, length) {
      var o = parse_cell_3(blob, length);
      o[1].v = blob.read_shift(2);
      var v = o[1].v >> 1;
      /* TODO: figure out all of the corner cases */
      if(o[1].v & 0x1) {
        switch(v & 0x07) {
          case 1: v = (v >> 3) * 500; break;
          case 2: v = (v >> 3) / 20; break;
          case 4: v = (v >> 3) / 2000; break;
          case 6: v = (v >> 3) / 16; break;
          case 7: v = (v >> 3) / 64; break;
          default: throw "unknown NUMBER_18 encoding " + (v & 0x07);
        }
      }
      o[1].v = v;
      return o;
    }

    function parse_NUMBER_17(blob, length) {
      var o = parse_cell_3(blob, length);
      var v1 = blob.read_shift(4);
      var v2 = blob.read_shift(4);
      var e = blob.read_shift(2);
      if(e == 0xFFFF) { o[1].v = 0; return o; }
      var s = e & 0x8000; e = (e&0x7FFF) - 16446;
      o[1].v = (s*2 - 1) * ((e > 0 ? (v2 << e) : (v2 >>> -e)) + (e > -32 ? (v1 << (e + 32)) : (v1 >>> -(e + 32))));
      return o;
    }

    function parse_FORMULA_19(blob, length) {
      var o = parse_NUMBER_17(blob, 14);
      blob.l += length - 14; /* TODO: formula */
      return o;
    }

    function parse_NUMBER_25(blob, length) {
      var o = parse_cell_3(blob, length);
      var v1 = blob.read_shift(4);
      o[1].v = v1 >> 6;
      return o;
    }

    function parse_NUMBER_27(blob, length) {
      var o = parse_cell_3(blob, length);
      var v1 = blob.read_shift(8,'f');
      o[1].v = v1;
      return o;
    }

    function parse_FORMULA_28(blob, length) {
      var o = parse_NUMBER_27(blob, 14);
      blob.l += length - 10; /* TODO: formula */
      return o;
    }

    var WK1Enum = {
      0x0000: { n:"BOF", f:parseuint16 },
      0x0001: { n:"EOF" },
      0x0002: { n:"CALCMODE" },
      0x0003: { n:"CALCORDER" },
      0x0004: { n:"SPLIT" },
      0x0005: { n:"SYNC" },
      0x0006: { n:"RANGE", f:parse_RANGE },
      0x0007: { n:"WINDOW1" },
      0x0008: { n:"COLW1" },
      0x0009: { n:"WINTWO" },
      0x000A: { n:"COLW2" },
      0x000B: { n:"NAME" },
      0x000C: { n:"BLANK" },
      0x000D: { n:"INTEGER", f:parse_INTEGER },
      0x000E: { n:"NUMBER", f:parse_NUMBER },
      0x000F: { n:"LABEL", f:parse_LABEL },
      0x0010: { n:"FORMULA", f:parse_FORMULA },
      0x0018: { n:"TABLE" },
      0x0019: { n:"ORANGE" },
      0x001A: { n:"PRANGE" },
      0x001B: { n:"SRANGE" },
      0x001C: { n:"FRANGE" },
      0x001D: { n:"KRANGE1" },
      0x0020: { n:"HRANGE" },
      0x0023: { n:"KRANGE2" },
      0x0024: { n:"PROTEC" },
      0x0025: { n:"FOOTER" },
      0x0026: { n:"HEADER" },
      0x0027: { n:"SETUP" },
      0x0028: { n:"MARGINS" },
      0x0029: { n:"LABELFMT" },
      0x002A: { n:"TITLES" },
      0x002B: { n:"SHEETJS" },
      0x002D: { n:"GRAPH" },
      0x002E: { n:"NGRAPH" },
      0x002F: { n:"CALCCOUNT" },
      0x0030: { n:"UNFORMATTED" },
      0x0031: { n:"CURSORW12" },
      0x0032: { n:"WINDOW" },
      0x0033: { n:"STRING", f:parse_LABEL },
      0x0037: { n:"PASSWORD" },
      0x0038: { n:"LOCKED" },
      0x003C: { n:"QUERY" },
      0x003D: { n:"QUERYNAME" },
      0x003E: { n:"PRINT" },
      0x003F: { n:"PRINTNAME" },
      0x0040: { n:"GRAPH2" },
      0x0041: { n:"GRAPHNAME" },
      0x0042: { n:"ZOOM" },
      0x0043: { n:"SYMSPLIT" },
      0x0044: { n:"NSROWS" },
      0x0045: { n:"NSCOLS" },
      0x0046: { n:"RULER" },
      0x0047: { n:"NNAME" },
      0x0048: { n:"ACOMM" },
      0x0049: { n:"AMACRO" },
      0x004A: { n:"PARSE" },
      0x00FF: { n:"", f:parsenoop }
    };

    var WK3Enum = {
      0x0000: { n:"BOF" },
      0x0001: { n:"EOF" },
      0x0003: { n:"??" },
      0x0004: { n:"??" },
      0x0005: { n:"??" },
      0x0006: { n:"??" },
      0x0007: { n:"??" },
      0x0009: { n:"??" },
      0x000a: { n:"??" },
      0x000b: { n:"??" },
      0x000c: { n:"??" },
      0x000e: { n:"??" },
      0x000f: { n:"??" },
      0x0010: { n:"??" },
      0x0011: { n:"??" },
      0x0012: { n:"??" },
      0x0013: { n:"??" },
      0x0015: { n:"??" },
      0x0016: { n:"LABEL16", f:parse_LABEL_16},
      0x0017: { n:"NUMBER17", f:parse_NUMBER_17 },
      0x0018: { n:"NUMBER18", f:parse_NUMBER_18 },
      0x0019: { n:"FORMULA19", f:parse_FORMULA_19},
      0x001a: { n:"??" },
      0x001b: { n:"??" },
      0x001c: { n:"??" },
      0x001d: { n:"??" },
      0x001e: { n:"??" },
      0x001f: { n:"??" },
      0x0021: { n:"??" },
      0x0025: { n:"NUMBER25", f:parse_NUMBER_25 },
      0x0027: { n:"NUMBER27", f:parse_NUMBER_27 },
      0x0028: { n:"FORMULA28", f:parse_FORMULA_28 },
      0x00FF: { n:"", f:parsenoop }
    };
    return {
      to_workbook: lotus_to_workbook
    };
  })();
  /* Parse a list of <r> tags */
  var parse_rs = (function parse_rs_factory() {
    var tregex = matchtag("t"), rpregex = matchtag("rPr"), rregex = /<(?:\w+:)?r>/g, rend = /<\/(?:\w+:)?r>/, nlregex = /\r\n/g;
    /* 18.4.7 rPr CT_RPrElt */
    var parse_rpr = function parse_rpr(rpr, intro, outro) {
      var font = {}, cp = 65001, align = "";
      var pass = false;
      var m = rpr.match(tagregex), i = 0;
      if(m) for(;i!=m.length; ++i) {
        var y = parsexmltag(m[i]);
        switch(y[0].replace(/\w*:/g,"")) {
          /* 18.8.12 condense CT_BooleanProperty */
          /* ** not required . */
          case '<condense': break;
          /* 18.8.17 extend CT_BooleanProperty */
          /* ** not required . */
          case '<extend': break;
          /* 18.8.36 shadow CT_BooleanProperty */
          /* ** not required . */
          case '<shadow':
            if(!y.val) break;
          /* falls through */
          case '<shadow>':
          case '<shadow/>': font.shadow = 1; break;
          case '</shadow>': break;

          /* 18.4.1 charset CT_IntProperty TODO */
          case '<charset':
            if(y.val == '1') break;
            cp = CS2CP[parseInt(y.val, 10)];
            break;

          /* 18.4.2 outline CT_BooleanProperty TODO */
          case '<outline':
            if(!y.val) break;
          /* falls through */
          case '<outline>':
          case '<outline/>': font.outline = 1; break;
          case '</outline>': break;

          /* 18.4.5 rFont CT_FontName */
          case '<rFont': font.name = y.val; break;

          /* 18.4.11 sz CT_FontSize */
          case '<sz': font.sz = y.val; break;

          /* 18.4.10 strike CT_BooleanProperty */
          case '<strike':
            if(!y.val) break;
          /* falls through */
          case '<strike>':
          case '<strike/>': font.strike = 1; break;
          case '</strike>': break;

          /* 18.4.13 u CT_UnderlineProperty */
          case '<u':
            if(!y.val) break;
            switch(y.val) {
              case 'double': font.uval = "double"; break;
              case 'singleAccounting': font.uval = "single-accounting"; break;
              case 'doubleAccounting': font.uval = "double-accounting"; break;
            }
          /* falls through */
          case '<u>':
          case '<u/>': font.u = 1; break;
          case '</u>': break;

          /* 18.8.2 b */
          case '<b':
            if(y.val == '0') break;
          /* falls through */
          case '<b>':
          case '<b/>': font.b = 1; break;
          case '</b>': break;

          /* 18.8.26 i */
          case '<i':
            if(y.val == '0') break;
          /* falls through */
          case '<i>':
          case '<i/>': font.i = 1; break;
          case '</i>': break;

          /* 18.3.1.15 color CT_Color TODO: tint, theme, auto, indexed */
          case '<color':
            if(y.rgb) font.color = y.rgb.slice(2,8);
            break;

          /* 18.8.18 family ST_FontFamily */
          case '<family': font.family = y.val; break;

          /* 18.4.14 vertAlign CT_VerticalAlignFontProperty TODO */
          case '<vertAlign': align = y.val; break;

          /* 18.8.35 scheme CT_FontScheme TODO */
          case '<scheme': break;

          /* 18.2.10 extLst CT_ExtensionList ? */
          case '<extLst': case '<extLst>': case '</extLst>': break;
          case '<ext': pass = true; break;
          case '</ext>': pass = false; break;
          default:
            if(y[0].charCodeAt(1) !== 47 && !pass) throw new Error('Unrecognized rich format ' + y[0]);
        }
      }
      var style = [];

      if(font.u) style.push("text-decoration: underline;");
      if(font.uval) style.push("text-underline-style:" + font.uval + ";");
      if(font.sz) style.push("font-size:" + font.sz + "pt;");
      if(font.outline) style.push("text-effect: outline;");
      if(font.shadow) style.push("text-shadow: auto;");
      intro.push('<span style="' + style.join("") + '">');

      if(font.b) { intro.push("<b>"); outro.push("</b>"); }
      if(font.i) { intro.push("<i>"); outro.push("</i>"); }
      if(font.strike) { intro.push("<s>"); outro.push("</s>"); }

      if(align == "superscript") align = "sup";
      else if(align == "subscript") align = "sub";
      if(align != "") { intro.push("<" + align + ">"); outro.push("</" + align + ">"); }

      outro.push("</span>");
      return cp;
    };

    /* 18.4.4 r CT_RElt */
    function parse_r(r) {
      var terms = [[],"",[]];
      /* 18.4.12 t ST_Xstring */
      var t = r.match(tregex)/*, cp = 65001*/;
      if(!t) return "";
      terms[1] = t[1];

      var rpr = r.match(rpregex);
      if(rpr) /*cp = */parse_rpr(rpr[1], terms[0], terms[2]);

      return terms[0].join("") + terms[1].replace(nlregex,'<br/>') + terms[2].join("");
    }
    return function parse_rs(rs) {
      return rs.replace(rregex,"").split(rend).map(parse_r).join("");
    };
  })();

  /* 18.4.8 si CT_Rst */
  var sitregex = /<(?:\w+:)?t[^>]*>([^<]*)<\/(?:\w+:)?t>/g, sirregex = /<(?:\w+:)?r>/;
  var sirphregex = /<(?:\w+:)?rPh.*?>([\s\S]*?)<\/(?:\w+:)?rPh>/g;
  function parse_si(x, opts) {
    var html = opts ? opts.cellHTML : true;
    var z = {};
    if(!x) return null;
    //var y;
    /* 18.4.12 t ST_Xstring (Plaintext String) */
    // TODO: is whitespace actually valid here?
    if(x.match(/^\s*<(?:\w+:)?t[^>]*>/)) {
      z.t = unescapexml(utf8read(x.slice(x.indexOf(">")+1).split(/<\/(?:\w+:)?t>/)[0]||""));
      z.r = utf8read(x);
      if(html) z.h = escapehtml(z.t);
    }
    /* 18.4.4 r CT_RElt (Rich Text Run) */
    else if((/*y = */x.match(sirregex))) {
      z.r = utf8read(x);
      z.t = unescapexml(utf8read((x.replace(sirphregex, '').match(sitregex)||[]).join("").replace(tagregex,"")));
      if(html) z.h = parse_rs(z.r);
    }
    /* 18.4.3 phoneticPr CT_PhoneticPr (TODO: needed for Asian support) */
    /* 18.4.6 rPh CT_PhoneticRun (TODO: needed for Asian support) */
    return z;
  }

  /* 18.4 Shared String Table */
  var sstr0 = /<(?:\w+:)?sst([^>]*)>([\s\S]*)<\/(?:\w+:)?sst>/;
  var sstr1 = /<(?:\w+:)?(?:si|sstItem)>/g;
  var sstr2 = /<\/(?:\w+:)?(?:si|sstItem)>/;
  function parse_sst_xml(data, opts) {
    var s = ([]), ss = "";
    if(!data) return s;
    /* 18.4.9 sst CT_Sst */
    var sst = data.match(sstr0);
    if(sst) {
      ss = sst[2].replace(sstr1,"").split(sstr2);
      for(var i = 0; i != ss.length; ++i) {
        var o = parse_si(ss[i].trim(), opts);
        if(o != null) s[s.length] = o;
      }
      sst = parsexmltag(sst[1]); s.Count = sst.count; s.Unique = sst.uniqueCount;
    }
    return s;
  }

  RELS.SST = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings";
  var straywsregex = /^\s|\s$|[\t\n\r]/;
  function write_sst_xml(sst, opts) {
    if(!opts.bookSST) return "";
    var o = [XML_HEADER];
    o[o.length] = (writextag('sst', null, {
      xmlns: XMLNS.main[0],
      count: sst.Count,
      uniqueCount: sst.Unique
    }));
    for(var i = 0; i != sst.length; ++i) { if(sst[i] == null) continue;
      var s = sst[i];
      var sitag = "<si>";
      if(s.r) sitag += s.r;
      else {
        sitag += "<t";
        if(!s.t) s.t = "";
        if(s.t.match(straywsregex)) sitag += ' xml:space="preserve"';
        sitag += ">" + escapexml(s.t) + "</t>";
      }
      sitag += "</si>";
      o[o.length] = (sitag);
    }
    if(o.length>2){ o[o.length] = ('</sst>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* [MS-XLSB] 2.4.221 BrtBeginSst */
  function parse_BrtBeginSst(data) {
    return [data.read_shift(4), data.read_shift(4)];
  }

  /* [MS-XLSB] 2.1.7.45 Shared Strings */
  function parse_sst_bin(data, opts) {
    var s = ([]);
    var pass = false;
    recordhopper(data, function hopper_sst(val, R_n, RT) {
      switch(RT) {
        case 0x009F: /* 'BrtBeginSst' */
          s.Count = val[0]; s.Unique = val[1]; break;
        case 0x0013: /* 'BrtSSTItem' */
          s.push(val); break;
        case 0x00A0: /* 'BrtEndSst' */
          return true;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;

        default:
          if(R_n.indexOf("Begin") > 0){/* empty */}
          else if(R_n.indexOf("End") > 0){/* empty */}
          if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    });
    return s;
  }

  function write_BrtBeginSst(sst, o) {
    if(!o) o = new_buf(8);
    o.write_shift(4, sst.Count);
    o.write_shift(4, sst.Unique);
    return o;
  }

  var write_BrtSSTItem = write_RichStr;

  function write_sst_bin(sst) {
    var ba = buf_array();
    write_record(ba, "BrtBeginSst", write_BrtBeginSst(sst));
    for(var i = 0; i < sst.length; ++i) write_record(ba, "BrtSSTItem", write_BrtSSTItem(sst[i]));
    /* FRTSST */
    write_record(ba, "BrtEndSst");
    return ba.end();
  }
  function _JS2ANSI(str) {
    if(typeof cptable !== 'undefined') return cptable.utils.encode(current_ansi, str);
    var o = [], oo = str.split("");
    for(var i = 0; i < oo.length; ++i) o[i] = oo[i].charCodeAt(0);
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.4 Version */
  function parse_CRYPTOVersion(blob, length) {
    var o = {};
    o.Major = blob.read_shift(2);
    o.Minor = blob.read_shift(2);
    if(length >= 4) blob.l += length - 4;
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.5 DataSpaceVersionInfo */
  function parse_DataSpaceVersionInfo(blob) {
    var o = {};
    o.id = blob.read_shift(0, 'lpp4');
    o.R = parse_CRYPTOVersion(blob, 4);
    o.U = parse_CRYPTOVersion(blob, 4);
    o.W = parse_CRYPTOVersion(blob, 4);
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.6.1 DataSpaceMapEntry Structure */
  function parse_DataSpaceMapEntry(blob) {
    var len = blob.read_shift(4);
    var end = blob.l + len - 4;
    var o = {};
    var cnt = blob.read_shift(4);
    var comps = [];
    /* [MS-OFFCRYPTO] 2.1.6.2 DataSpaceReferenceComponent Structure */
    while(cnt-- > 0) comps.push({ t: blob.read_shift(4), v: blob.read_shift(0, 'lpp4') });
    o.name = blob.read_shift(0, 'lpp4');
    o.comps = comps;
    if(blob.l != end) throw new Error("Bad DataSpaceMapEntry: " + blob.l + " != " + end);
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.6 DataSpaceMap */
  function parse_DataSpaceMap(blob) {
    var o = [];
    blob.l += 4; // must be 0x8
    var cnt = blob.read_shift(4);
    while(cnt-- > 0) o.push(parse_DataSpaceMapEntry(blob));
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.7 DataSpaceDefinition */
  function parse_DataSpaceDefinition(blob) {
    var o = [];
    blob.l += 4; // must be 0x8
    var cnt = blob.read_shift(4);
    while(cnt-- > 0) o.push(blob.read_shift(0, 'lpp4'));
    return o;
  }

  /* [MS-OFFCRYPTO] 2.1.8 DataSpaceDefinition */
  function parse_TransformInfoHeader(blob) {
    var o = {};
    /*var len = */blob.read_shift(4);
    blob.l += 4; // must be 0x1
    o.id = blob.read_shift(0, 'lpp4');
    o.name = blob.read_shift(0, 'lpp4');
    o.R = parse_CRYPTOVersion(blob, 4);
    o.U = parse_CRYPTOVersion(blob, 4);
    o.W = parse_CRYPTOVersion(blob, 4);
    return o;
  }

  function parse_Primary(blob) {
    /* [MS-OFFCRYPTO] 2.2.6 IRMDSTransformInfo */
    var hdr = parse_TransformInfoHeader(blob);
    /* [MS-OFFCRYPTO] 2.1.9 EncryptionTransformInfo */
    hdr.ename = blob.read_shift(0, '8lpp4');
    hdr.blksz = blob.read_shift(4);
    hdr.cmode = blob.read_shift(4);
    if(blob.read_shift(4) != 0x04) throw new Error("Bad !Primary record");
    return hdr;
  }

  /* [MS-OFFCRYPTO] 2.3.2 Encryption Header */
  function parse_EncryptionHeader(blob, length) {
    var tgt = blob.l + length;
    var o = {};
    o.Flags = (blob.read_shift(4) & 0x3F);
    blob.l += 4;
    o.AlgID = blob.read_shift(4);
    var valid = false;
    switch(o.AlgID) {
      case 0x660E: case 0x660F: case 0x6610: valid = (o.Flags == 0x24); break;
      case 0x6801: valid = (o.Flags == 0x04); break;
      case 0: valid = (o.Flags == 0x10 || o.Flags == 0x04 || o.Flags == 0x24); break;
      default: throw 'Unrecognized encryption algorithm: ' + o.AlgID;
    }
    if(!valid) throw new Error("Encryption Flags/AlgID mismatch");
    o.AlgIDHash = blob.read_shift(4);
    o.KeySize = blob.read_shift(4);
    o.ProviderType = blob.read_shift(4);
    blob.l += 8;
    o.CSPName = blob.read_shift((tgt-blob.l)>>1, 'utf16le');
    blob.l = tgt;
    return o;
  }

  /* [MS-OFFCRYPTO] 2.3.3 Encryption Verifier */
  function parse_EncryptionVerifier(blob, length) {
    var o = {}, tgt = blob.l + length;
    blob.l += 4; // SaltSize must be 0x10
    o.Salt = blob.slice(blob.l, blob.l+16); blob.l += 16;
    o.Verifier = blob.slice(blob.l, blob.l+16); blob.l += 16;
    /*var sz = */blob.read_shift(4);
    o.VerifierHash = blob.slice(blob.l, tgt); blob.l = tgt;
    return o;
  }

  /* [MS-OFFCRYPTO] 2.3.4.* EncryptionInfo Stream */
  function parse_EncryptionInfo(blob) {
    var vers = parse_CRYPTOVersion(blob);
    switch(vers.Minor) {
      case 0x02: return [vers.Minor, parse_EncInfoStd(blob, vers)];
      case 0x03: return [vers.Minor, parse_EncInfoExt(blob, vers)];
      case 0x04: return [vers.Minor, parse_EncInfoAgl(blob, vers)];
    }
    throw new Error("ECMA-376 Encrypted file unrecognized Version: " + vers.Minor);
  }

  /* [MS-OFFCRYPTO] 2.3.4.5  EncryptionInfo Stream (Standard Encryption) */
  function parse_EncInfoStd(blob) {
    var flags = blob.read_shift(4);
    if((flags & 0x3F) != 0x24) throw new Error("EncryptionInfo mismatch");
    var sz = blob.read_shift(4);
    //var tgt = blob.l + sz;
    var hdr = parse_EncryptionHeader(blob, sz);
    var verifier = parse_EncryptionVerifier(blob, blob.length - blob.l);
    return { t:"Std", h:hdr, v:verifier };
  }
  /* [MS-OFFCRYPTO] 2.3.4.6  EncryptionInfo Stream (Extensible Encryption) */
  function parse_EncInfoExt() { throw new Error("File is password-protected: ECMA-376 Extensible"); }
  /* [MS-OFFCRYPTO] 2.3.4.10 EncryptionInfo Stream (Agile Encryption) */
  function parse_EncInfoAgl(blob) {
    var KeyData = ["saltSize","blockSize","keyBits","hashSize","cipherAlgorithm","cipherChaining","hashAlgorithm","saltValue"];
    blob.l+=4;
    var xml = blob.read_shift(blob.length - blob.l, 'utf8');
    var o = {};
    xml.replace(tagregex, function xml_agile(x) {
      var y = parsexmltag(x);
      switch(strip_ns(y[0])) {
        case '<?xml': break;
        case '<encryption': case '</encryption>': break;
        case '<keyData': KeyData.forEach(function(k) { o[k] = y[k]; }); break;
        case '<dataIntegrity': o.encryptedHmacKey = y.encryptedHmacKey; o.encryptedHmacValue = y.encryptedHmacValue; break;
        case '<keyEncryptors>': case '<keyEncryptors': o.encs = []; break;
        case '</keyEncryptors>': break;

        case '<keyEncryptor': o.uri = y.uri; break;
        case '</keyEncryptor>': break;
        case '<encryptedKey': o.encs.push(y); break;
        default: throw y[0];
      }
    });
    return o;
  }

  /* [MS-OFFCRYPTO] 2.3.5.1 RC4 CryptoAPI Encryption Header */
  function parse_RC4CryptoHeader(blob, length) {
    var o = {};
    var vers = o.EncryptionVersionInfo = parse_CRYPTOVersion(blob, 4); length -= 4;
    if(vers.Minor != 2) throw new Error('unrecognized minor version code: ' + vers.Minor);
    if(vers.Major > 4 || vers.Major < 2) throw new Error('unrecognized major version code: ' + vers.Major);
    o.Flags = blob.read_shift(4); length -= 4;
    var sz = blob.read_shift(4); length -= 4;
    o.EncryptionHeader = parse_EncryptionHeader(blob, sz); length -= sz;
    o.EncryptionVerifier = parse_EncryptionVerifier(blob, length);
    return o;
  }
  /* [MS-OFFCRYPTO] 2.3.6.1 RC4 Encryption Header */
  function parse_RC4Header(blob) {
    var o = {};
    var vers = o.EncryptionVersionInfo = parse_CRYPTOVersion(blob, 4);
    if(vers.Major != 1 || vers.Minor != 1) throw 'unrecognized version code ' + vers.Major + ' : ' + vers.Minor;
    o.Salt = blob.read_shift(16);
    o.EncryptedVerifier = blob.read_shift(16);
    o.EncryptedVerifierHash = blob.read_shift(16);
    return o;
  }

  /* [MS-OFFCRYPTO] 2.3.7.1 Binary Document Password Verifier Derivation */
  function crypto_CreatePasswordVerifier_Method1(Password) {
    var Verifier = 0x0000, PasswordArray;
    var PasswordDecoded = _JS2ANSI(Password);
    var len = PasswordDecoded.length + 1, i, PasswordByte;
    var Intermediate1, Intermediate2, Intermediate3;
    PasswordArray = new_raw_buf(len);
    PasswordArray[0] = PasswordDecoded.length;
    for(i = 1; i != len; ++i) PasswordArray[i] = PasswordDecoded[i-1];
    for(i = len-1; i >= 0; --i) {
      PasswordByte = PasswordArray[i];
      Intermediate1 = ((Verifier & 0x4000) === 0x0000) ? 0 : 1;
      Intermediate2 = (Verifier << 1) & 0x7FFF;
      Intermediate3 = Intermediate1 | Intermediate2;
      Verifier = Intermediate3 ^ PasswordByte;
    }
    return Verifier ^ 0xCE4B;
  }

  /* [MS-OFFCRYPTO] 2.3.7.2 Binary Document XOR Array Initialization */
  var crypto_CreateXorArray_Method1 = (function() {
    var PadArray = [0xBB, 0xFF, 0xFF, 0xBA, 0xFF, 0xFF, 0xB9, 0x80, 0x00, 0xBE, 0x0F, 0x00, 0xBF, 0x0F, 0x00];
    var InitialCode = [0xE1F0, 0x1D0F, 0xCC9C, 0x84C0, 0x110C, 0x0E10, 0xF1CE, 0x313E, 0x1872, 0xE139, 0xD40F, 0x84F9, 0x280C, 0xA96A, 0x4EC3];
    var XorMatrix = [0xAEFC, 0x4DD9, 0x9BB2, 0x2745, 0x4E8A, 0x9D14, 0x2A09, 0x7B61, 0xF6C2, 0xFDA5, 0xEB6B, 0xC6F7, 0x9DCF, 0x2BBF, 0x4563, 0x8AC6, 0x05AD, 0x0B5A, 0x16B4, 0x2D68, 0x5AD0, 0x0375, 0x06EA, 0x0DD4, 0x1BA8, 0x3750, 0x6EA0, 0xDD40, 0xD849, 0xA0B3, 0x5147, 0xA28E, 0x553D, 0xAA7A, 0x44D5, 0x6F45, 0xDE8A, 0xAD35, 0x4A4B, 0x9496, 0x390D, 0x721A, 0xEB23, 0xC667, 0x9CEF, 0x29FF, 0x53FE, 0xA7FC, 0x5FD9, 0x47D3, 0x8FA6, 0x0F6D, 0x1EDA, 0x3DB4, 0x7B68, 0xF6D0, 0xB861, 0x60E3, 0xC1C6, 0x93AD, 0x377B, 0x6EF6, 0xDDEC, 0x45A0, 0x8B40, 0x06A1, 0x0D42, 0x1A84, 0x3508, 0x6A10, 0xAA51, 0x4483, 0x8906, 0x022D, 0x045A, 0x08B4, 0x1168, 0x76B4, 0xED68, 0xCAF1, 0x85C3, 0x1BA7, 0x374E, 0x6E9C, 0x3730, 0x6E60, 0xDCC0, 0xA9A1, 0x4363, 0x86C6, 0x1DAD, 0x3331, 0x6662, 0xCCC4, 0x89A9, 0x0373, 0x06E6, 0x0DCC, 0x1021, 0x2042, 0x4084, 0x8108, 0x1231, 0x2462, 0x48C4];
    var Ror = function(Byte) { return ((Byte/2) | (Byte*128)) & 0xFF; };
    var XorRor = function(byte1, byte2) { return Ror(byte1 ^ byte2); };
    var CreateXorKey_Method1 = function(Password) {
      var XorKey = InitialCode[Password.length - 1];
      var CurrentElement = 0x68;
      for(var i = Password.length-1; i >= 0; --i) {
        var Char = Password[i];
        for(var j = 0; j != 7; ++j) {
          if(Char & 0x40) XorKey ^= XorMatrix[CurrentElement];
          Char *= 2; --CurrentElement;
        }
      }
      return XorKey;
    };
    return function(password) {
      var Password = _JS2ANSI(password);
      var XorKey = CreateXorKey_Method1(Password);
      var Index = Password.length;
      var ObfuscationArray = new_raw_buf(16);
      for(var i = 0; i != 16; ++i) ObfuscationArray[i] = 0x00;
      var Temp, PasswordLastChar, PadIndex;
      if((Index & 1) === 1) {
        Temp = XorKey >> 8;
        ObfuscationArray[Index] = XorRor(PadArray[0], Temp);
        --Index;
        Temp = XorKey & 0xFF;
        PasswordLastChar = Password[Password.length - 1];
        ObfuscationArray[Index] = XorRor(PasswordLastChar, Temp);
      }
      while(Index > 0) {
        --Index;
        Temp = XorKey >> 8;
        ObfuscationArray[Index] = XorRor(Password[Index], Temp);
        --Index;
        Temp = XorKey & 0xFF;
        ObfuscationArray[Index] = XorRor(Password[Index], Temp);
      }
      Index = 15;
      PadIndex = 15 - Password.length;
      while(PadIndex > 0) {
        Temp = XorKey >> 8;
        ObfuscationArray[Index] = XorRor(PadArray[PadIndex], Temp);
        --Index;
        --PadIndex;
        Temp = XorKey & 0xFF;
        ObfuscationArray[Index] = XorRor(Password[Index], Temp);
        --Index;
        --PadIndex;
      }
      return ObfuscationArray;
    };
  })();

  /* [MS-OFFCRYPTO] 2.3.7.3 Binary Document XOR Data Transformation Method 1 */
  var crypto_DecryptData_Method1 = function(password, Data, XorArrayIndex, XorArray, O) {
    /* If XorArray is set, use it; if O is not set, make changes in-place */
    if(!O) O = Data;
    if(!XorArray) XorArray = crypto_CreateXorArray_Method1(password);
    var Index, Value;
    for(Index = 0; Index != Data.length; ++Index) {
      Value = Data[Index];
      Value ^= XorArray[XorArrayIndex];
      Value = ((Value>>5) | (Value<<3)) & 0xFF;
      O[Index] = Value;
      ++XorArrayIndex;
    }
    return [O, XorArrayIndex, XorArray];
  };

  var crypto_MakeXorDecryptor = function(password) {
    var XorArrayIndex = 0, XorArray = crypto_CreateXorArray_Method1(password);
    return function(Data) {
      var O = crypto_DecryptData_Method1("", Data, XorArrayIndex, XorArray);
      XorArrayIndex = O[1];
      return O[0];
    };
  };

  /* 2.5.343 */
  function parse_XORObfuscation(blob, length, opts, out) {
    var o = ({ key: parseuint16(blob), verificationBytes: parseuint16(blob) });
    if(opts.password) o.verifier = crypto_CreatePasswordVerifier_Method1(opts.password);
    out.valid = o.verificationBytes === o.verifier;
    if(out.valid) out.insitu = crypto_MakeXorDecryptor(opts.password);
    return o;
  }

  /* 2.4.117 */
  function parse_FilePassHeader(blob, length, oo) {
    var o = oo || {}; o.Info = blob.read_shift(2); blob.l -= 2;
    if(o.Info === 1) o.Data = parse_RC4Header(blob, length);
    else o.Data = parse_RC4CryptoHeader(blob, length);
    return o;
  }
  function parse_FilePass(blob, length, opts) {
    var o = ({ Type: opts.biff >= 8 ? blob.read_shift(2) : 0 }); /* wEncryptionType */
    if(o.Type) parse_FilePassHeader(blob, length-2, o);
    else parse_XORObfuscation(blob, opts.biff >= 8 ? length : length - 2, opts, o);
    return o;
  }


  var RTF = (function() {
    function rtf_to_sheet(d, opts) {
      switch(opts.type) {
        case 'base64': return rtf_to_sheet_str(Base64.decode(d), opts);
        case 'binary': return rtf_to_sheet_str(d, opts);
        case 'buffer': return rtf_to_sheet_str(d.toString('binary'), opts);
        case 'array':  return rtf_to_sheet_str(cc2str(d), opts);
      }
      throw new Error("Unrecognized type " + opts.type);
    }

    function rtf_to_sheet_str(str, opts) {
      var o = opts || {};
      var ws = o.dense ? ([]) : ({});
      var range = ({s: {c:0, r:0}, e: {c:0, r:0}});

      // TODO: parse
      if(!str.match(/\\trowd/)) throw new Error("RTF missing table");

      ws['!ref'] = encode_range(range);
      return ws;
    }

    function rtf_to_workbook(d, opts) { return sheet_to_workbook(rtf_to_sheet(d, opts), opts); }

    /* TODO: this is a stub */
    function sheet_to_rtf(ws) {
      var o = ["{\\rtf1\\ansi"];
      var r = safe_decode_range(ws['!ref']), cell;
      var dense = Array.isArray(ws);
      for(var R = r.s.r; R <= r.e.r; ++R) {
        o.push("\\trowd\\trautofit1");
        for(var C = r.s.c; C <= r.e.c; ++C) o.push("\\cellx" + (C+1));
        o.push("\\pard\\intbl");
        for(C = r.s.c; C <= r.e.c; ++C) {
          var coord = encode_cell({r:R,c:C});
          cell = dense ? (ws[R]||[])[C]: ws[coord];
          if(!cell || cell.v == null && (!cell.f || cell.F)) continue;
          o.push(" " + (cell.w || (format_cell(cell), cell.w)));
          o.push("\\cell");
        }
        o.push("\\pard\\intbl\\row");
      }
      return o.join("") + "}";
    }

    return {
      to_workbook: rtf_to_workbook,
      to_sheet: rtf_to_sheet,
      from_sheet: sheet_to_rtf
    };
  })();
  function hex2RGB(h) {
    var o = h.slice(h[0]==="#"?1:0).slice(0,6);
    return [parseInt(o.slice(0,2),16),parseInt(o.slice(2,4),16),parseInt(o.slice(4,6),16)];
  }
  function rgb2Hex(rgb) {
    for(var i=0,o=1; i!=3; ++i) o = o*256 + (rgb[i]>255?255:rgb[i]<0?0:rgb[i]);
    return o.toString(16).toUpperCase().slice(1);
  }

  function rgb2HSL(rgb) {
    var R = rgb[0]/255, G = rgb[1]/255, B=rgb[2]/255;
    var M = Math.max(R, G, B), m = Math.min(R, G, B), C = M - m;
    if(C === 0) return [0, 0, R];

    var H6 = 0, S = 0, L2 = (M + m);
    S = C / (L2 > 1 ? 2 - L2 : L2);
    switch(M){
      case R: H6 = ((G - B) / C + 6)%6; break;
      case G: H6 = ((B - R) / C + 2); break;
      case B: H6 = ((R - G) / C + 4); break;
    }
    return [H6 / 6, S, L2 / 2];
  }

  function hsl2RGB(hsl){
    var H = hsl[0], S = hsl[1], L = hsl[2];
    var C = S * 2 * (L < 0.5 ? L : 1 - L), m = L - C/2;
    var rgb = [m,m,m], h6 = 6*H;

    var X;
    if(S !== 0) switch(h6|0) {
      case 0: case 6: X = C * h6; rgb[0] += C; rgb[1] += X; break;
      case 1: X = C * (2 - h6);   rgb[0] += X; rgb[1] += C; break;
      case 2: X = C * (h6 - 2);   rgb[1] += C; rgb[2] += X; break;
      case 3: X = C * (4 - h6);   rgb[1] += X; rgb[2] += C; break;
      case 4: X = C * (h6 - 4);   rgb[2] += C; rgb[0] += X; break;
      case 5: X = C * (6 - h6);   rgb[2] += X; rgb[0] += C; break;
    }
    for(var i = 0; i != 3; ++i) rgb[i] = Math.round(rgb[i]*255);
    return rgb;
  }

  /* 18.8.3 bgColor tint algorithm */
  function rgb_tint(hex, tint) {
    if(tint === 0) return hex;
    var hsl = rgb2HSL(hex2RGB(hex));
    if (tint < 0) hsl[2] = hsl[2] * (1 + tint);
    else hsl[2] = 1 - (1 - hsl[2]) * (1 - tint);
    return rgb2Hex(hsl2RGB(hsl));
  }

  /* 18.3.1.13 width calculations */
  /* [MS-OI29500] 2.1.595 Column Width & Formatting */
  var DEF_MDW = 6, MAX_MDW = 15, MIN_MDW = 1, MDW = DEF_MDW;
  function width2px(width) { return Math.floor(( width + (Math.round(128/MDW))/256 )* MDW ); }
  function px2char(px) { return (Math.floor((px - 5)/MDW * 100 + 0.5))/100; }
  function char2width(chr) { return (Math.round((chr * MDW + 5)/MDW*256))/256; }
//function px2char_(px) { return (((px - 5)/MDW * 100 + 0.5))/100; }
//function char2width_(chr) { return (((chr * MDW + 5)/MDW*256))/256; }
  function cycle_width(collw) { return char2width(px2char(width2px(collw))); }
  /* XLSX/XLSB/XLS specify width in units of MDW */
  function find_mdw_colw(collw) {
    var delta = Math.abs(collw - cycle_width(collw)), _MDW = MDW;
    if(delta > 0.005) for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) if(Math.abs(collw - cycle_width(collw)) <= delta) { delta = Math.abs(collw - cycle_width(collw)); _MDW = MDW; }
    MDW = _MDW;
  }
  /* XLML specifies width in terms of pixels */
  /*function find_mdw_wpx(wpx) {
	var delta = Infinity, guess = 0, _MDW = MIN_MDW;
	for(MDW=MIN_MDW; MDW<MAX_MDW; ++MDW) {
		guess = char2width_(px2char_(wpx))*256;
		guess = (guess) % 1;
		if(guess > 0.5) guess--;
		if(Math.abs(guess) < delta) { delta = Math.abs(guess); _MDW = MDW; }
	}
	MDW = _MDW;
}*/

  function process_col(coll) {
    if(coll.width) {
      coll.wpx = width2px(coll.width);
      coll.wch = px2char(coll.wpx);
      coll.MDW = MDW;
    } else if(coll.wpx) {
      coll.wch = px2char(coll.wpx);
      coll.width = char2width(coll.wch);
      coll.MDW = MDW;
    } else if(typeof coll.wch == 'number') {
      coll.width = char2width(coll.wch);
      coll.wpx = width2px(coll.width);
      coll.MDW = MDW;
    }
    if(coll.customWidth) delete coll.customWidth;
  }

  var DEF_PPI = 96, PPI = DEF_PPI;
  function px2pt(px) { return px * 96 / PPI; }
  function pt2px(pt) { return pt * PPI / 96; }

  /* [MS-EXSPXML3] 2.4.54 ST_enmPattern */
  var XLMLPatternTypeMap = {
    "None": "none",
    "Solid": "solid",
    "Gray50": "mediumGray",
    "Gray75": "darkGray",
    "Gray25": "lightGray",
    "HorzStripe": "darkHorizontal",
    "VertStripe": "darkVertical",
    "ReverseDiagStripe": "darkDown",
    "DiagStripe": "darkUp",
    "DiagCross": "darkGrid",
    "ThickDiagCross": "darkTrellis",
    "ThinHorzStripe": "lightHorizontal",
    "ThinVertStripe": "lightVertical",
    "ThinReverseDiagStripe": "lightDown",
    "ThinHorzCross": "lightGrid"
  };

  /* 18.8.5 borders CT_Borders */
  function parse_borders(t, styles, themes, opts) {
    styles.Borders = [];
    var border = {}/*, sub_border = {}*/;
    var pass = false;
    t[0].match(tagregex).forEach(function(x) {
      var y = parsexmltag(x);
      switch(strip_ns(y[0])) {
        case '<borders': case '<borders>': case '</borders>': break;

        /* 18.8.4 border CT_Border */
        case '<border': case '<border>': case '<border/>':
          border = {};
          if (y.diagonalUp) { border.diagonalUp = y.diagonalUp; }
          if (y.diagonalDown) { border.diagonalDown = y.diagonalDown; }
          styles.Borders.push(border);
          break;
        case '</border>': break;

        /* note: not in spec, appears to be CT_BorderPr */
        case '<left/>': break;
        case '<left': case '<left>': break;
        case '</left>': break;

        /* note: not in spec, appears to be CT_BorderPr */
        case '<right/>': break;
        case '<right': case '<right>': break;
        case '</right>': break;

        /* 18.8.43 top CT_BorderPr */
        case '<top/>': break;
        case '<top': case '<top>': break;
        case '</top>': break;

        /* 18.8.6 bottom CT_BorderPr */
        case '<bottom/>': break;
        case '<bottom': case '<bottom>': break;
        case '</bottom>': break;

        /* 18.8.13 diagonal CT_BorderPr */
        case '<diagonal': case '<diagonal>': case '<diagonal/>': break;
        case '</diagonal>': break;

        /* 18.8.25 horizontal CT_BorderPr */
        case '<horizontal': case '<horizontal>': case '<horizontal/>': break;
        case '</horizontal>': break;

        /* 18.8.44 vertical CT_BorderPr */
        case '<vertical': case '<vertical>': case '<vertical/>': break;
        case '</vertical>': break;

        /* 18.8.37 start CT_BorderPr */
        case '<start': case '<start>': case '<start/>': break;
        case '</start>': break;

        /* 18.8.16 end CT_BorderPr */
        case '<end': case '<end>': case '<end/>': break;
        case '</end>': break;

        /* 18.8.? color CT_Color */
        case '<color': case '<color>': break;
        case '<color/>': case '</color>': break;

        /* 18.2.10 extLst CT_ExtensionList ? */
        case '<extLst': case '<extLst>': case '</extLst>': break;
        case '<ext': pass = true; break;
        case '</ext>': pass = false; break;
        default: if(opts && opts.WTF) {
          if(!pass) throw new Error('unrecognized ' + y[0] + ' in borders');
        }
      }
    });
  }

  /* 18.8.21 fills CT_Fills */
  function parse_fills(t, styles, themes, opts) {
    styles.Fills = [];
    var fill = {};
    var pass = false;
    t[0].match(tagregex).forEach(function(x) {
      var y = parsexmltag(x);
      switch(strip_ns(y[0])) {
        case '<fills': case '<fills>': case '</fills>': break;

        /* 18.8.20 fill CT_Fill */
        case '<fill>': case '<fill': case '<fill/>':
          fill = {}; styles.Fills.push(fill); break;
        case '</fill>': break;

        /* 18.8.24 gradientFill CT_GradientFill */
        case '<gradientFill>': break;
        case '<gradientFill':
        case '</gradientFill>': styles.Fills.push(fill); fill = {}; break;

        /* 18.8.32 patternFill CT_PatternFill */
        case '<patternFill': case '<patternFill>':
          if(y.patternType) fill.patternType = y.patternType;
          break;
        case '<patternFill/>': case '</patternFill>': break;

        /* 18.8.3 bgColor CT_Color */
        case '<bgColor':
          if(!fill.bgColor) fill.bgColor = {};
          if(y.indexed) fill.bgColor.indexed = parseInt(y.indexed, 10);
          if(y.theme) fill.bgColor.theme = parseInt(y.theme, 10);
          if(y.tint) fill.bgColor.tint = parseFloat(y.tint);
          /* Excel uses ARGB strings */
          if(y.rgb) fill.bgColor.rgb = y.rgb.slice(-6);
          break;
        case '<bgColor/>': case '</bgColor>': break;

        /* 18.8.19 fgColor CT_Color */
        case '<fgColor':
          if(!fill.fgColor) fill.fgColor = {};
          if(y.theme) fill.fgColor.theme = parseInt(y.theme, 10);
          if(y.tint) fill.fgColor.tint = parseFloat(y.tint);
          /* Excel uses ARGB strings */
          if(y.rgb) fill.fgColor.rgb = y.rgb.slice(-6);
          break;
        case '<fgColor/>': case '</fgColor>': break;

        /* 18.8.38 stop CT_GradientStop */
        case '<stop': case '<stop/>': break;
        case '</stop>': break;

        /* 18.8.? color CT_Color */
        case '<color': case '<color/>': break;
        case '</color>': break;

        /* 18.2.10 extLst CT_ExtensionList ? */
        case '<extLst': case '<extLst>': case '</extLst>': break;
        case '<ext': pass = true; break;
        case '</ext>': pass = false; break;
        default: if(opts && opts.WTF) {
          if(!pass) throw new Error('unrecognized ' + y[0] + ' in fills');
        }
      }
    });
  }

  /* 18.8.23 fonts CT_Fonts */
  function parse_fonts(t, styles, themes, opts) {
    styles.Fonts = [];
    var font = {};
    var pass = false;
    t[0].match(tagregex).forEach(function(x) {
      var y = parsexmltag(x);
      switch(strip_ns(y[0])) {
        case '<fonts': case '<fonts>': case '</fonts>': break;

        /* 18.8.22 font CT_Font */
        case '<font': case '<font>': break;
        case '</font>': case '<font/>':
          styles.Fonts.push(font);
          font = {};
          break;

        /* 18.8.29 name CT_FontName */
        case '<name': if(y.val) font.name = y.val; break;
        case '<name/>': case '</name>': break;

        /* 18.8.2  b CT_BooleanProperty */
        case '<b': font.bold = y.val ? parsexmlbool(y.val) : 1; break;
        case '<b/>': font.bold = 1; break;

        /* 18.8.26 i CT_BooleanProperty */
        case '<i': font.italic = y.val ? parsexmlbool(y.val) : 1; break;
        case '<i/>': font.italic = 1; break;

        /* 18.4.13 u CT_UnderlineProperty */
        case '<u':
          switch(y.val) {
            case "none": font.underline = 0x00; break;
            case "single": font.underline = 0x01; break;
            case "double": font.underline = 0x02; break;
            case "singleAccounting": font.underline = 0x21; break;
            case "doubleAccounting": font.underline = 0x22; break;
          } break;
        case '<u/>': font.underline = 1; break;

        /* 18.4.10 strike CT_BooleanProperty */
        case '<strike': font.strike = y.val ? parsexmlbool(y.val) : 1; break;
        case '<strike/>': font.strike = 1; break;

        /* 18.4.2  outline CT_BooleanProperty */
        case '<outline': font.outline = y.val ? parsexmlbool(y.val) : 1; break;
        case '<outline/>': font.outline = 1; break;

        /* 18.8.36 shadow CT_BooleanProperty */
        case '<shadow': font.shadow = y.val ? parsexmlbool(y.val) : 1; break;
        case '<shadow/>': font.shadow = 1; break;

        /* 18.8.12 condense CT_BooleanProperty */
        case '<condense': font.condense = y.val ? parsexmlbool(y.val) : 1; break;
        case '<condense/>': font.condense = 1; break;

        /* 18.8.17 extend CT_BooleanProperty */
        case '<extend': font.extend = y.val ? parsexmlbool(y.val) : 1; break;
        case '<extend/>': font.extend = 1; break;

        /* 18.4.11 sz CT_FontSize */
        case '<sz': if(y.val) font.sz = +y.val; break;
        case '<sz/>': case '</sz>': break;

        /* 18.4.14 vertAlign CT_VerticalAlignFontProperty */
        case '<vertAlign': if(y.val) font.vertAlign = y.val; break;
        case '<vertAlign/>': case '</vertAlign>': break;

        /* 18.8.18 family CT_FontFamily */
        case '<family': if(y.val) font.family = parseInt(y.val,10); break;
        case '<family/>': case '</family>': break;

        /* 18.8.35 scheme CT_FontScheme */
        case '<scheme': if(y.val) font.scheme = y.val; break;
        case '<scheme/>': case '</scheme>': break;

        /* 18.4.1 charset CT_IntProperty */
        case '<charset':
          if(y.val == '1') break;
          y.codepage = CS2CP[parseInt(y.val, 10)];
          break;

        /* 18.?.? color CT_Color */
        case '<color':
          if(!font.color) font.color = {};
          if(y.auto) font.color.auto = parsexmlbool(y.auto);

          if(y.rgb) font.color.rgb = y.rgb.slice(-6);
          else if(y.indexed) {
            font.color.index = parseInt(y.indexed, 10);
            var icv = XLSIcv[font.color.index];
            if(font.color.index == 81) icv = XLSIcv[1];
            if(!icv) throw new Error(x);
            font.color.rgb = icv[0].toString(16) + icv[1].toString(16) + icv[2].toString(16);
          } else if(y.theme) {
            font.color.theme = parseInt(y.theme, 10);
            if(y.tint) font.color.tint = parseFloat(y.tint);
            if(y.theme && themes.themeElements && themes.themeElements.clrScheme) {
              font.color.rgb = rgb_tint(themes.themeElements.clrScheme[font.color.theme].rgb, font.color.tint || 0);
            }
          }

          break;
        case '<color/>': case '</color>': break;

        /* 18.2.10 extLst CT_ExtensionList ? */
        case '<extLst': case '<extLst>': case '</extLst>': break;
        case '<ext': pass = true; break;
        case '</ext>': pass = false; break;
        default: if(opts && opts.WTF) {
          if(!pass) throw new Error('unrecognized ' + y[0] + ' in fonts');
        }
      }
    });
  }

  /* 18.8.31 numFmts CT_NumFmts */
  function parse_numFmts(t, styles, opts) {
    styles.NumberFmt = [];
    var k/*Array<number>*/ = (keys(SSF._table));
    for(var i=0; i < k.length; ++i) styles.NumberFmt[k[i]] = SSF._table[k[i]];
    var m = t[0].match(tagregex);
    if(!m) return;
    for(i=0; i < m.length; ++i) {
      var y = parsexmltag(m[i]);
      switch(strip_ns(y[0])) {
        case '<numFmts': case '</numFmts>': case '<numFmts/>': case '<numFmts>': break;
        case '<numFmt': {
          var f=unescapexml(utf8read(y.formatCode)), j=parseInt(y.numFmtId,10);
          styles.NumberFmt[j] = f;
          if(j>0) {
            if(j > 0x188) {
              for(j = 0x188; j > 0x3c; --j) if(styles.NumberFmt[j] == null) break;
              styles.NumberFmt[j] = f;
            }
            SSF.load(f,j);
          }
        } break;
        case '</numFmt>': break;
        default: if(opts.WTF) throw new Error('unrecognized ' + y[0] + ' in numFmts');
      }
    }
  }

  function write_numFmts(NF) {
    var o = ["<numFmts>"];
    [[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
      for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) o[o.length] = (writextag('numFmt',null,{numFmtId:i,formatCode:escapexml(NF[i])}));
    });
    if(o.length === 1) return "";
    o[o.length] = ("</numFmts>");
    o[0] = writextag('numFmts', null, { count:o.length-2 }).replace("/>", ">");
    return o.join("");
  }

  /* 18.8.10 cellXfs CT_CellXfs */
  var cellXF_uint = [ "numFmtId", "fillId", "fontId", "borderId", "xfId" ];
  var cellXF_bool = [ "applyAlignment", "applyBorder", "applyFill", "applyFont", "applyNumberFormat", "applyProtection", "pivotButton", "quotePrefix" ];
  function parse_cellXfs(t, styles, opts) {
    styles.CellXf = [];
    var xf;
    var pass = false;
    t[0].match(tagregex).forEach(function(x) {
      var y = parsexmltag(x), i = 0;
      switch(strip_ns(y[0])) {
        case '<cellXfs': case '<cellXfs>': case '<cellXfs/>': case '</cellXfs>': break;

        /* 18.8.45 xf CT_Xf */
        case '<xf': case '<xf/>':
          xf = y;
          delete xf[0];
          for(i = 0; i < cellXF_uint.length; ++i) if(xf[cellXF_uint[i]])
            xf[cellXF_uint[i]] = parseInt(xf[cellXF_uint[i]], 10);
          for(i = 0; i < cellXF_bool.length; ++i) if(xf[cellXF_bool[i]])
            xf[cellXF_bool[i]] = parsexmlbool(xf[cellXF_bool[i]]);
          if(xf.numFmtId > 0x188) {
            for(i = 0x188; i > 0x3c; --i) if(styles.NumberFmt[xf.numFmtId] == styles.NumberFmt[i]) { xf.numFmtId = i; break; }
          }
          styles.CellXf.push(xf); break;
        case '</xf>': break;

        /* 18.8.1 alignment CT_CellAlignment */
        case '<alignment': case '<alignment/>':
          var alignment = {};
          if(y.vertical) alignment.vertical = y.vertical;
          if(y.horizontal) alignment.horizontal = y.horizontal;
          if(y.textRotation != null) alignment.textRotation = y.textRotation;
          if(y.indent) alignment.indent = y.indent;
          if(y.wrapText) alignment.wrapText = y.wrapText;
          xf.alignment = alignment;
          break;
        case '</alignment>': break;

        /* 18.8.33 protection CT_CellProtection */
        case '<protection': case '</protection>': case '<protection/>': break;

        /* 18.2.10 extLst CT_ExtensionList ? */
        case '<extLst': case '<extLst>': case '</extLst>': break;
        case '<ext': pass = true; break;
        case '</ext>': pass = false; break;
        default: if(opts && opts.WTF) {
          if(!pass) throw new Error('unrecognized ' + y[0] + ' in cellXfs');
        }
      }
    });
  }

  function write_cellXfs(cellXfs) {
    var o = [];
    o[o.length] = (writextag('cellXfs',null));
    cellXfs.forEach(function(c) { o[o.length] = (writextag('xf', null, c)); });
    o[o.length] = ("</cellXfs>");
    if(o.length === 2) return "";
    o[0] = writextag('cellXfs',null, {count:o.length-2}).replace("/>",">");
    return o.join("");
  }

  /* 18.8 Styles CT_Stylesheet*/
  var parse_sty_xml= (function make_pstyx() {
    var numFmtRegex = /<(?:\w+:)?numFmts([^>]*)>[\S\s]*?<\/(?:\w+:)?numFmts>/;
    var cellXfRegex = /<(?:\w+:)?cellXfs([^>]*)>[\S\s]*?<\/(?:\w+:)?cellXfs>/;
    var fillsRegex = /<(?:\w+:)?fills([^>]*)>[\S\s]*?<\/(?:\w+:)?fills>/;
    var fontsRegex = /<(?:\w+:)?fonts([^>]*)>[\S\s]*?<\/(?:\w+:)?fonts>/;
    var bordersRegex = /<(?:\w+:)?borders([^>]*)>[\S\s]*?<\/(?:\w+:)?borders>/;

    return function parse_sty_xml(data, themes, opts) {
      var styles = {};
      if(!data) return styles;
      data = data.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
      /* 18.8.39 styleSheet CT_Stylesheet */
      var t;

      /* 18.8.31 numFmts CT_NumFmts ? */
      if((t=data.match(numFmtRegex))) parse_numFmts(t, styles, opts);

      /* 18.8.23 fonts CT_Fonts ? */
      if((t=data.match(fontsRegex))) parse_fonts(t, styles, themes, opts);

      /* 18.8.21 fills CT_Fills ? */
      if((t=data.match(fillsRegex))) parse_fills(t, styles, themes, opts);

      /* 18.8.5  borders CT_Borders ? */
      if((t=data.match(bordersRegex))) parse_borders(t, styles, themes, opts);

      /* 18.8.9  cellStyleXfs CT_CellStyleXfs ? */

      /* 18.8.10 cellXfs CT_CellXfs ? */
      if((t=data.match(cellXfRegex))) parse_cellXfs(t, styles, opts);

      /* 18.8.8  cellStyles CT_CellStyles ? */
      /* 18.8.15 dxfs CT_Dxfs ? */
      /* 18.8.42 tableStyles CT_TableStyles ? */
      /* 18.8.11 colors CT_Colors ? */
      /* 18.2.10 extLst CT_ExtensionList ? */

      return styles;
    };
  })();

  var STYLES_XML_ROOT = writextag('styleSheet', null, {
    'xmlns': XMLNS.main[0],
    'xmlns:vt': XMLNS.vt
  });

  RELS.STY = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";

  function write_sty_xml(wb, opts) {
    if (typeof style_builder != 'undefined' && typeof 'require' != 'undefined') {
      return style_builder.toXml();
    }
    var o = [XML_HEADER, STYLES_XML_ROOT], w;
    if(wb.SSF && (w = write_numFmts(wb.SSF)) != null) o[o.length] = w;
    o[o.length] = ('<fonts count="1"><font><sz val="12"/><color theme="1"/><name val="Calibri"/><family val="2"/><scheme val="minor"/></font></fonts>');
    o[o.length] = ('<fills count="2"><fill><patternFill patternType="none"/></fill><fill><patternFill patternType="gray125"/></fill></fills>');
    o[o.length] = ('<borders count="1"><border><left/><right/><top/><bottom/><diagonal/></border></borders>');
    o[o.length] = ('<cellStyleXfs count="1"><xf numFmtId="0" fontId="0" fillId="0" borderId="0"/></cellStyleXfs>');
    if((w = write_cellXfs(opts.cellXfs))) o[o.length] = (w);
    o[o.length] = ('<cellStyles count="1"><cellStyle name="Normal" xfId="0" builtinId="0"/></cellStyles>');
    o[o.length] = ('<dxfs count="0"/>');
    o[o.length] = ('<tableStyles count="0" defaultTableStyle="TableStyleMedium9" defaultPivotStyle="PivotStyleMedium4"/>');

    if(o.length>2){ o[o.length] = ('</styleSheet>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* [MS-XLSB] 2.4.657 BrtFmt */
  function parse_BrtFmt(data, length) {
    var numFmtId = data.read_shift(2);
    var stFmtCode = parse_XLWideString(data,length-2);
    return [numFmtId, stFmtCode];
  }
  function write_BrtFmt(i, f, o) {
    if(!o) o = new_buf(6 + 4 * f.length);
    o.write_shift(2, i);
    write_XLWideString(f, o);
    var out = (o.length > o.l) ? o.slice(0, o.l) : o;
    if(o.l == null) o.l = o.length;
    return out;
  }

  /* [MS-XLSB] 2.4.659 BrtFont TODO */
  function parse_BrtFont(data, length, opts) {
    var out = ({});

    out.sz = data.read_shift(2) / 20;

    var grbit = parse_FontFlags(data, 2, opts);
    if(grbit.fCondense) out.condense = 1;
    if(grbit.fExtend) out.extend = 1;
    if(grbit.fShadow) out.shadow = 1;
    if(grbit.fOutline) out.outline = 1;
    if(grbit.fStrikeout) out.strike = 1;
    if(grbit.fItalic) out.italic = 1;

    var bls = data.read_shift(2);
    if(bls === 0x02BC) out.bold = 1;

    switch(data.read_shift(2)) {
      /* case 0: out.vertAlign = "baseline"; break; */
      case 1: out.vertAlign = "superscript"; break;
      case 2: out.vertAlign = "subscript"; break;
    }

    var underline = data.read_shift(1);
    if(underline != 0) out.underline = underline;

    var family = data.read_shift(1);
    if(family > 0) out.family = family;

    var bCharSet = data.read_shift(1);
    if(bCharSet > 0) out.charset = bCharSet;

    data.l++;
    out.color = parse_BrtColor(data, 8);

    switch(data.read_shift(1)) {
      /* case 0: out.scheme = "none": break; */
      case 1: out.scheme = "major"; break;
      case 2: out.scheme = "minor"; break;
    }

    out.name = parse_XLWideString(data, length - 21);

    return out;
  }
  function write_BrtFont(font, o) {
    if(!o) o = new_buf(25+4*32);
    o.write_shift(2, font.sz * 20);
    write_FontFlags(font, o);
    o.write_shift(2, font.bold ? 0x02BC : 0x0190);
    var sss = 0;
    if(font.vertAlign == "superscript") sss = 1;
    else if(font.vertAlign == "subscript") sss = 2;
    o.write_shift(2, sss);
    o.write_shift(1, font.underline || 0);
    o.write_shift(1, font.family || 0);
    o.write_shift(1, font.charset || 0);
    o.write_shift(1, 0);
    write_BrtColor(font.color, o);
    var scheme = 0;
    if(font.scheme == "major") scheme = 1;
    if(font.scheme == "minor") scheme = 2;
    o.write_shift(1, scheme);
    write_XLWideString(font.name, o);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.650 BrtFill */
  var XLSBFillPTNames = [
    "none",
    "solid",
    "mediumGray",
    "darkGray",
    "lightGray",
    "darkHorizontal",
    "darkVertical",
    "darkDown",
    "darkUp",
    "darkGrid",
    "darkTrellis",
    "lightHorizontal",
    "lightVertical",
    "lightDown",
    "lightUp",
    "lightGrid",
    "lightTrellis",
    "gray125",
    "gray0625"
  ];
  var rev_XLSBFillPTNames = (evert(XLSBFillPTNames));
  /* TODO: gradient fill representation */
  var parse_BrtFill = parsenoop;
  function write_BrtFill(fill, o) {
    if(!o) o = new_buf(4*3 + 8*7 + 16*1);
    var fls = rev_XLSBFillPTNames[fill.patternType];
    if(fls == null) fls = 0x28;
    o.write_shift(4, fls);
    var j = 0;
    if(fls != 0x28) {
      /* TODO: custom FG Color */
      write_BrtColor({auto:1}, o);
      /* TODO: custom BG Color */
      write_BrtColor({auto:1}, o);

      for(; j < 12; ++j) o.write_shift(4, 0);
    } else {
      for(; j < 4; ++j) o.write_shift(4, 0);

      for(; j < 12; ++j) o.write_shift(4, 0); /* TODO */
      /* iGradientType */
      /* xnumDegree */
      /* xnumFillToLeft */
      /* xnumFillToRight */
      /* xnumFillToTop */
      /* xnumFillToBottom */
      /* cNumStop */
      /* xfillGradientStop */
    }
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.824 BrtXF */
  function parse_BrtXF(data, length) {
    var tgt = data.l + length;
    var ixfeParent = data.read_shift(2);
    var ifmt = data.read_shift(2);
    data.l = tgt;
    return {ixfe:ixfeParent, numFmtId:ifmt };
  }
  function write_BrtXF(data, ixfeP, o) {
    if(!o) o = new_buf(16);
    o.write_shift(2, ixfeP||0);
    o.write_shift(2, data.numFmtId||0);
    o.write_shift(2, 0); /* iFont */
    o.write_shift(2, 0); /* iFill */
    o.write_shift(2, 0); /* ixBorder */
    o.write_shift(1, 0); /* trot */
    o.write_shift(1, 0); /* indent */
    o.write_shift(1, 0); /* flags */
    o.write_shift(1, 0); /* flags */
    o.write_shift(1, 0); /* xfGrbitAtr */
    o.write_shift(1, 0);
    return o;
  }

  /* [MS-XLSB] 2.5.4 Blxf TODO */
  function write_Blxf(data, o) {
    if(!o) o = new_buf(10);
    o.write_shift(1, 0); /* dg */
    o.write_shift(1, 0);
    o.write_shift(4, 0); /* color */
    o.write_shift(4, 0); /* color */
    return o;
  }
  /* [MS-XLSB] 2.4.302 BrtBorder TODO */
  var parse_BrtBorder = parsenoop;
  function write_BrtBorder(border, o) {
    if(!o) o = new_buf(51);
    o.write_shift(1, 0); /* diagonal */
    write_Blxf(null, o); /* top */
    write_Blxf(null, o); /* bottom */
    write_Blxf(null, o); /* left */
    write_Blxf(null, o); /* right */
    write_Blxf(null, o); /* diag */
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.763 BrtStyle TODO */
  function write_BrtStyle(style, o) {
    if(!o) o = new_buf(12+4*10);
    o.write_shift(4, style.xfId);
    o.write_shift(2, 1);
    o.write_shift(1, +style.builtinId);
    o.write_shift(1, 0); /* iLevel */
    write_XLNullableWideString(style.name || "", o);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.272 BrtBeginTableStyles */
  function write_BrtBeginTableStyles(cnt, defTableStyle, defPivotStyle) {
    var o = new_buf(4+256*2*4);
    o.write_shift(4, cnt);
    write_XLNullableWideString(defTableStyle, o);
    write_XLNullableWideString(defPivotStyle, o);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.1.7.50 Styles */
  function parse_sty_bin(data, themes, opts) {
    var styles = {};
    styles.NumberFmt = ([]);
    for(var y in SSF._table) styles.NumberFmt[y] = SSF._table[y];

    styles.CellXf = [];
    styles.Fonts = [];
    var state = [];
    var pass = false;
    recordhopper(data, function hopper_sty(val, R_n, RT) {
      switch(RT) {
        case 0x002C: /* 'BrtFmt' */
          styles.NumberFmt[val[0]] = val[1]; SSF.load(val[1], val[0]);
          break;
        case 0x002B: /* 'BrtFont' */
          styles.Fonts.push(val);
          if(val.color.theme != null && themes && themes.themeElements && themes.themeElements.clrScheme) {
            val.color.rgb = rgb_tint(themes.themeElements.clrScheme[val.color.theme].rgb, val.color.tint || 0);
          }
          break;
        case 0x0401: /* 'BrtKnownFonts' */ break;
        case 0x002D: /* 'BrtFill' */ break;
        case 0x002E: /* 'BrtBorder' */ break;
        case 0x002F: /* 'BrtXF' */
          if(state[state.length - 1] == "BrtBeginCellXFs") {
            styles.CellXf.push(val);
          }
          break;
        case 0x0030: /* 'BrtStyle' */
        case 0x01FB: /* 'BrtDXF' */
        case 0x023C: /* 'BrtMRUColor' */
        case 0x01DB: /* 'BrtIndexedColor': */
          break;

        case 0x0493: /* 'BrtDXF14' */
        case 0x0836: /* 'BrtDXF15' */
        case 0x046A: /* 'BrtSlicerStyleElement' */
        case 0x0200: /* 'BrtTableStyleElement' */
        case 0x082F: /* 'BrtTimelineStyleElement' */
        case 0x0C00: /* 'BrtUid' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;
        case 0x0025: /* 'BrtACBegin' */
          state.push(R_n); break;
        case 0x0026: /* 'BrtACEnd' */
          state.pop(); break;

        default:
          if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
          else if((R_n||"").indexOf("End") > 0) state.pop();
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    });
    return styles;
  }

  function write_FMTS_bin(ba, NF) {
    if(!NF) return;
    var cnt = 0;
    [[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
      for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) ++cnt;
    });

    if(cnt == 0) return;
    write_record(ba, "BrtBeginFmts", write_UInt32LE(cnt));
    [[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
      for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_record(ba, "BrtFmt", write_BrtFmt(i, NF[i]));
    });
    write_record(ba, "BrtEndFmts");
  }

  function write_FONTS_bin(ba) {
    var cnt = 1;

    if(cnt == 0) return;
    write_record(ba, "BrtBeginFonts", write_UInt32LE(cnt));
    write_record(ba, "BrtFont", write_BrtFont({
      sz:12,
      color: {theme:1},
      name: "Calibri",
      family: 2,
      scheme: "minor"
    }));
    /* 1*65491BrtFont [ACFONTS] */
    write_record(ba, "BrtEndFonts");
  }

  function write_FILLS_bin(ba) {
    var cnt = 2;

    if(cnt == 0) return;
    write_record(ba, "BrtBeginFills", write_UInt32LE(cnt));
    write_record(ba, "BrtFill", write_BrtFill({patternType:"none"}));
    write_record(ba, "BrtFill", write_BrtFill({patternType:"gray125"}));
    /* 1*65431BrtFill */
    write_record(ba, "BrtEndFills");
  }

  function write_BORDERS_bin(ba) {
    var cnt = 1;

    if(cnt == 0) return;
    write_record(ba, "BrtBeginBorders", write_UInt32LE(cnt));
    write_record(ba, "BrtBorder", write_BrtBorder({}));
    /* 1*65430BrtBorder */
    write_record(ba, "BrtEndBorders");
  }

  function write_CELLSTYLEXFS_bin(ba) {
    var cnt = 1;
    write_record(ba, "BrtBeginCellStyleXFs", write_UInt32LE(cnt));
    write_record(ba, "BrtXF", write_BrtXF({
      numFmtId:0,
      fontId:0,
      fillId:0,
      borderId:0
    }, 0xFFFF));
    /* 1*65430(BrtXF *FRT) */
    write_record(ba, "BrtEndCellStyleXFs");
  }

  function write_CELLXFS_bin(ba, data) {
    write_record(ba, "BrtBeginCellXFs", write_UInt32LE(data.length));
    data.forEach(function(c) { write_record(ba, "BrtXF", write_BrtXF(c,0)); });
    /* 1*65430(BrtXF *FRT) */
    write_record(ba, "BrtEndCellXFs");
  }

  function write_STYLES_bin(ba) {
    var cnt = 1;

    write_record(ba, "BrtBeginStyles", write_UInt32LE(cnt));
    write_record(ba, "BrtStyle", write_BrtStyle({
      xfId:0,
      builtinId:0,
      name:"Normal"
    }));
    /* 1*65430(BrtStyle *FRT) */
    write_record(ba, "BrtEndStyles");
  }

  function write_DXFS_bin(ba) {
    var cnt = 0;

    write_record(ba, "BrtBeginDXFs", write_UInt32LE(cnt));
    /* *2147483647(BrtDXF *FRT) */
    write_record(ba, "BrtEndDXFs");
  }

  function write_TABLESTYLES_bin(ba) {
    var cnt = 0;

    write_record(ba, "BrtBeginTableStyles", write_BrtBeginTableStyles(cnt, "TableStyleMedium9", "PivotStyleMedium4"));
    /* *TABLESTYLE */
    write_record(ba, "BrtEndTableStyles");
  }

  function write_COLORPALETTE_bin() {
    return;
    /* BrtBeginColorPalette [INDEXEDCOLORS] [MRUCOLORS] BrtEndColorPalette */
  }

  /* [MS-XLSB] 2.1.7.50 Styles */
  function write_sty_bin(wb, opts) {
    var ba = buf_array();
    write_record(ba, "BrtBeginStyleSheet");
    write_FMTS_bin(ba, wb.SSF);
    write_FONTS_bin(ba, wb);
    write_FILLS_bin(ba, wb);
    write_BORDERS_bin(ba, wb);
    write_CELLSTYLEXFS_bin(ba, wb);
    write_CELLXFS_bin(ba, opts.cellXfs);
    write_STYLES_bin(ba, wb);
    write_DXFS_bin(ba, wb);
    write_TABLESTYLES_bin(ba, wb);
    write_COLORPALETTE_bin(ba, wb);
    /* FRTSTYLESHEET*/
    write_record(ba, "BrtEndStyleSheet");
    return ba.end();
  }
  RELS.THEME = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme";

  /* 20.1.6.2 clrScheme CT_ColorScheme */
  function parse_clrScheme(t, themes, opts) {
    themes.themeElements.clrScheme = [];
    var color = {};
    (t[0].match(tagregex)||[]).forEach(function(x) {
      var y = parsexmltag(x);
      switch(y[0]) {
        /* 20.1.6.2 clrScheme (Color Scheme) CT_ColorScheme */
        case '<a:clrScheme': case '</a:clrScheme>': break;

        /* 20.1.2.3.32 srgbClr CT_SRgbColor */
        case '<a:srgbClr':
          color.rgb = y.val; break;

        /* 20.1.2.3.33 sysClr CT_SystemColor */
        case '<a:sysClr':
          color.rgb = y.lastClr; break;

        /* 20.1.4.1.1 accent1 (Accent 1) */
        /* 20.1.4.1.2 accent2 (Accent 2) */
        /* 20.1.4.1.3 accent3 (Accent 3) */
        /* 20.1.4.1.4 accent4 (Accent 4) */
        /* 20.1.4.1.5 accent5 (Accent 5) */
        /* 20.1.4.1.6 accent6 (Accent 6) */
        /* 20.1.4.1.9 dk1 (Dark 1) */
        /* 20.1.4.1.10 dk2 (Dark 2) */
        /* 20.1.4.1.15 folHlink (Followed Hyperlink) */
        /* 20.1.4.1.19 hlink (Hyperlink) */
        /* 20.1.4.1.22 lt1 (Light 1) */
        /* 20.1.4.1.23 lt2 (Light 2) */
        case '<a:dk1>': case '</a:dk1>':
        case '<a:lt1>': case '</a:lt1>':
        case '<a:dk2>': case '</a:dk2>':
        case '<a:lt2>': case '</a:lt2>':
        case '<a:accent1>': case '</a:accent1>':
        case '<a:accent2>': case '</a:accent2>':
        case '<a:accent3>': case '</a:accent3>':
        case '<a:accent4>': case '</a:accent4>':
        case '<a:accent5>': case '</a:accent5>':
        case '<a:accent6>': case '</a:accent6>':
        case '<a:hlink>': case '</a:hlink>':
        case '<a:folHlink>': case '</a:folHlink>':
          if (y[0].charAt(1) === '/') {
            themes.themeElements.clrScheme.push(color);
            color = {};
          } else {
            color.name = y[0].slice(3, y[0].length - 1);
          }
          break;

        default: if(opts && opts.WTF) throw new Error('Unrecognized ' + y[0] + ' in clrScheme');
      }
    });
  }

  /* 20.1.4.1.18 fontScheme CT_FontScheme */
  function parse_fontScheme() { }

  /* 20.1.4.1.15 fmtScheme CT_StyleMatrix */
  function parse_fmtScheme() { }

  var clrsregex = /<a:clrScheme([^>]*)>[\s\S]*<\/a:clrScheme>/;
  var fntsregex = /<a:fontScheme([^>]*)>[\s\S]*<\/a:fontScheme>/;
  var fmtsregex = /<a:fmtScheme([^>]*)>[\s\S]*<\/a:fmtScheme>/;

  /* 20.1.6.10 themeElements CT_BaseStyles */
  function parse_themeElements(data, themes, opts) {
    themes.themeElements = {};

    var t;

    [
      /* clrScheme CT_ColorScheme */
      ['clrScheme', clrsregex, parse_clrScheme],
      /* fontScheme CT_FontScheme */
      ['fontScheme', fntsregex, parse_fontScheme],
      /* fmtScheme CT_StyleMatrix */
      ['fmtScheme', fmtsregex, parse_fmtScheme]
    ].forEach(function(m) {
      if(!(t=data.match(m[1]))) throw new Error(m[0] + ' not found in themeElements');
      m[2](t, themes, opts);
    });
  }

  var themeltregex = /<a:themeElements([^>]*)>[\s\S]*<\/a:themeElements>/;

  /* 14.2.7 Theme Part */
  function parse_theme_xml(data, opts) {
    /* 20.1.6.9 theme CT_OfficeStyleSheet */
    if(!data || data.length === 0) return parse_theme_xml(write_theme());

    var t;
    var themes = {};

    /* themeElements CT_BaseStyles */
    if(!(t=data.match(themeltregex))) throw new Error('themeElements not found in theme');
    parse_themeElements(t[0], themes, opts);

    return themes;
  }

  function write_theme(Themes, opts) {
    if(opts && opts.themeXLSX) return opts.themeXLSX;
    var o = [XML_HEADER];
    o[o.length] = '<a:theme xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" name="Office Theme">';
    o[o.length] =  '<a:themeElements>';

    o[o.length] =   '<a:clrScheme name="Office">';
    o[o.length] =    '<a:dk1><a:sysClr val="windowText" lastClr="000000"/></a:dk1>';
    o[o.length] =    '<a:lt1><a:sysClr val="window" lastClr="FFFFFF"/></a:lt1>';
    o[o.length] =    '<a:dk2><a:srgbClr val="1F497D"/></a:dk2>';
    o[o.length] =    '<a:lt2><a:srgbClr val="EEECE1"/></a:lt2>';
    o[o.length] =    '<a:accent1><a:srgbClr val="4F81BD"/></a:accent1>';
    o[o.length] =    '<a:accent2><a:srgbClr val="C0504D"/></a:accent2>';
    o[o.length] =    '<a:accent3><a:srgbClr val="9BBB59"/></a:accent3>';
    o[o.length] =    '<a:accent4><a:srgbClr val="8064A2"/></a:accent4>';
    o[o.length] =    '<a:accent5><a:srgbClr val="4BACC6"/></a:accent5>';
    o[o.length] =    '<a:accent6><a:srgbClr val="F79646"/></a:accent6>';
    o[o.length] =    '<a:hlink><a:srgbClr val="0000FF"/></a:hlink>';
    o[o.length] =    '<a:folHlink><a:srgbClr val="800080"/></a:folHlink>';
    o[o.length] =   '</a:clrScheme>';

    o[o.length] =   '<a:fontScheme name="Office">';
    o[o.length] =    '<a:majorFont>';
    o[o.length] =     '<a:latin typeface="Cambria"/>';
    o[o.length] =     '<a:ea typeface=""/>';
    o[o.length] =     '<a:cs typeface=""/>';
    o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
    o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
    o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
    o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
    o[o.length] =     '<a:font script="Arab" typeface="Times New Roman"/>';
    o[o.length] =     '<a:font script="Hebr" typeface="Times New Roman"/>';
    o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
    o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
    o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
    o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
    o[o.length] =     '<a:font script="Khmr" typeface="MoolBoran"/>';
    o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
    o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
    o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
    o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
    o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
    o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
    o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
    o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
    o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
    o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
    o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
    o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
    o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
    o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
    o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
    o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
    o[o.length] =     '<a:font script="Viet" typeface="Times New Roman"/>';
    o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
    o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
    o[o.length] =    '</a:majorFont>';
    o[o.length] =    '<a:minorFont>';
    o[o.length] =     '<a:latin typeface="Calibri"/>';
    o[o.length] =     '<a:ea typeface=""/>';
    o[o.length] =     '<a:cs typeface=""/>';
    o[o.length] =     '<a:font script="Jpan" typeface="ＭＳ Ｐゴシック"/>';
    o[o.length] =     '<a:font script="Hang" typeface="맑은 고딕"/>';
    o[o.length] =     '<a:font script="Hans" typeface="宋体"/>';
    o[o.length] =     '<a:font script="Hant" typeface="新細明體"/>';
    o[o.length] =     '<a:font script="Arab" typeface="Arial"/>';
    o[o.length] =     '<a:font script="Hebr" typeface="Arial"/>';
    o[o.length] =     '<a:font script="Thai" typeface="Tahoma"/>';
    o[o.length] =     '<a:font script="Ethi" typeface="Nyala"/>';
    o[o.length] =     '<a:font script="Beng" typeface="Vrinda"/>';
    o[o.length] =     '<a:font script="Gujr" typeface="Shruti"/>';
    o[o.length] =     '<a:font script="Khmr" typeface="DaunPenh"/>';
    o[o.length] =     '<a:font script="Knda" typeface="Tunga"/>';
    o[o.length] =     '<a:font script="Guru" typeface="Raavi"/>';
    o[o.length] =     '<a:font script="Cans" typeface="Euphemia"/>';
    o[o.length] =     '<a:font script="Cher" typeface="Plantagenet Cherokee"/>';
    o[o.length] =     '<a:font script="Yiii" typeface="Microsoft Yi Baiti"/>';
    o[o.length] =     '<a:font script="Tibt" typeface="Microsoft Himalaya"/>';
    o[o.length] =     '<a:font script="Thaa" typeface="MV Boli"/>';
    o[o.length] =     '<a:font script="Deva" typeface="Mangal"/>';
    o[o.length] =     '<a:font script="Telu" typeface="Gautami"/>';
    o[o.length] =     '<a:font script="Taml" typeface="Latha"/>';
    o[o.length] =     '<a:font script="Syrc" typeface="Estrangelo Edessa"/>';
    o[o.length] =     '<a:font script="Orya" typeface="Kalinga"/>';
    o[o.length] =     '<a:font script="Mlym" typeface="Kartika"/>';
    o[o.length] =     '<a:font script="Laoo" typeface="DokChampa"/>';
    o[o.length] =     '<a:font script="Sinh" typeface="Iskoola Pota"/>';
    o[o.length] =     '<a:font script="Mong" typeface="Mongolian Baiti"/>';
    o[o.length] =     '<a:font script="Viet" typeface="Arial"/>';
    o[o.length] =     '<a:font script="Uigh" typeface="Microsoft Uighur"/>';
    o[o.length] =     '<a:font script="Geor" typeface="Sylfaen"/>';
    o[o.length] =    '</a:minorFont>';
    o[o.length] =   '</a:fontScheme>';

    o[o.length] =   '<a:fmtScheme name="Office">';
    o[o.length] =    '<a:fillStyleLst>';
    o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
    o[o.length] =     '<a:gradFill rotWithShape="1">';
    o[o.length] =      '<a:gsLst>';
    o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="50000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="35000"><a:schemeClr val="phClr"><a:tint val="37000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="15000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
    o[o.length] =      '</a:gsLst>';
    o[o.length] =      '<a:lin ang="16200000" scaled="1"/>';
    o[o.length] =     '</a:gradFill>';
    o[o.length] =     '<a:gradFill rotWithShape="1">';
    o[o.length] =      '<a:gsLst>';
    o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="100000"/><a:shade val="100000"/><a:satMod val="130000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:tint val="50000"/><a:shade val="100000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
    o[o.length] =      '</a:gsLst>';
    o[o.length] =      '<a:lin ang="16200000" scaled="0"/>';
    o[o.length] =     '</a:gradFill>';
    o[o.length] =    '</a:fillStyleLst>';
    o[o.length] =    '<a:lnStyleLst>';
    o[o.length] =     '<a:ln w="9525" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"><a:shade val="95000"/><a:satMod val="105000"/></a:schemeClr></a:solidFill><a:prstDash val="solid"/></a:ln>';
    o[o.length] =     '<a:ln w="25400" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
    o[o.length] =     '<a:ln w="38100" cap="flat" cmpd="sng" algn="ctr"><a:solidFill><a:schemeClr val="phClr"/></a:solidFill><a:prstDash val="solid"/></a:ln>';
    o[o.length] =    '</a:lnStyleLst>';
    o[o.length] =    '<a:effectStyleLst>';
    o[o.length] =     '<a:effectStyle>';
    o[o.length] =      '<a:effectLst>';
    o[o.length] =       '<a:outerShdw blurRad="40000" dist="20000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="38000"/></a:srgbClr></a:outerShdw>';
    o[o.length] =      '</a:effectLst>';
    o[o.length] =     '</a:effectStyle>';
    o[o.length] =     '<a:effectStyle>';
    o[o.length] =      '<a:effectLst>';
    o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
    o[o.length] =      '</a:effectLst>';
    o[o.length] =     '</a:effectStyle>';
    o[o.length] =     '<a:effectStyle>';
    o[o.length] =      '<a:effectLst>';
    o[o.length] =       '<a:outerShdw blurRad="40000" dist="23000" dir="5400000" rotWithShape="0"><a:srgbClr val="000000"><a:alpha val="35000"/></a:srgbClr></a:outerShdw>';
    o[o.length] =      '</a:effectLst>';
    o[o.length] =      '<a:scene3d><a:camera prst="orthographicFront"><a:rot lat="0" lon="0" rev="0"/></a:camera><a:lightRig rig="threePt" dir="t"><a:rot lat="0" lon="0" rev="1200000"/></a:lightRig></a:scene3d>';
    o[o.length] =      '<a:sp3d><a:bevelT w="63500" h="25400"/></a:sp3d>';
    o[o.length] =     '</a:effectStyle>';
    o[o.length] =    '</a:effectStyleLst>';
    o[o.length] =    '<a:bgFillStyleLst>';
    o[o.length] =     '<a:solidFill><a:schemeClr val="phClr"/></a:solidFill>';
    o[o.length] =     '<a:gradFill rotWithShape="1">';
    o[o.length] =      '<a:gsLst>';
    o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="40000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="40000"><a:schemeClr val="phClr"><a:tint val="45000"/><a:shade val="99000"/><a:satMod val="350000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="20000"/><a:satMod val="255000"/></a:schemeClr></a:gs>';
    o[o.length] =      '</a:gsLst>';
    o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="-80000" r="50000" b="180000"/></a:path>';
    o[o.length] =     '</a:gradFill>';
    o[o.length] =     '<a:gradFill rotWithShape="1">';
    o[o.length] =      '<a:gsLst>';
    o[o.length] =       '<a:gs pos="0"><a:schemeClr val="phClr"><a:tint val="80000"/><a:satMod val="300000"/></a:schemeClr></a:gs>';
    o[o.length] =       '<a:gs pos="100000"><a:schemeClr val="phClr"><a:shade val="30000"/><a:satMod val="200000"/></a:schemeClr></a:gs>';
    o[o.length] =      '</a:gsLst>';
    o[o.length] =      '<a:path path="circle"><a:fillToRect l="50000" t="50000" r="50000" b="50000"/></a:path>';
    o[o.length] =     '</a:gradFill>';
    o[o.length] =    '</a:bgFillStyleLst>';
    o[o.length] =   '</a:fmtScheme>';
    o[o.length] =  '</a:themeElements>';

    o[o.length] =  '<a:objectDefaults>';
    o[o.length] =   '<a:spDef>';
    o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="1"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="3"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="2"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="lt1"/></a:fontRef></a:style>';
    o[o.length] =   '</a:spDef>';
    o[o.length] =   '<a:lnDef>';
    o[o.length] =    '<a:spPr/><a:bodyPr/><a:lstStyle/><a:style><a:lnRef idx="2"><a:schemeClr val="accent1"/></a:lnRef><a:fillRef idx="0"><a:schemeClr val="accent1"/></a:fillRef><a:effectRef idx="1"><a:schemeClr val="accent1"/></a:effectRef><a:fontRef idx="minor"><a:schemeClr val="tx1"/></a:fontRef></a:style>';
    o[o.length] =   '</a:lnDef>';
    o[o.length] =  '</a:objectDefaults>';
    o[o.length] =  '<a:extraClrSchemeLst/>';
    o[o.length] = '</a:theme>';
    return o.join("");
  }
  /* [MS-XLS] 2.4.326 TODO: payload is a zip file */
  function parse_Theme(blob, length, opts) {
    var end = blob.l + length;
    var dwThemeVersion = blob.read_shift(4);
    if(dwThemeVersion === 124226) return;
    if(!opts.cellStyles || !jszip) { blob.l = end; return; }
    var data = blob.slice(blob.l);
    blob.l = end;
    var zip; try { zip = new jszip(data); } catch(e) { return; }
    var themeXML = getzipstr(zip, "theme/theme/theme1.xml", true);
    if(!themeXML) return;
    return parse_theme_xml(themeXML, opts);
  }

  /* 2.5.49 */
  function parse_ColorTheme(blob) { return blob.read_shift(4); }

  /* 2.5.155 */
  function parse_FullColorExt(blob) {
    var o = {};
    o.xclrType = blob.read_shift(2);
    o.nTintShade = blob.read_shift(2);
    switch(o.xclrType) {
      case 0: blob.l += 4; break;
      case 1: o.xclrValue = parse_IcvXF(blob, 4); break;
      case 2: o.xclrValue = parse_LongRGBA(blob, 4); break;
      case 3: o.xclrValue = parse_ColorTheme(blob, 4); break;
      case 4: blob.l += 4; break;
    }
    blob.l += 8;
    return o;
  }

  /* 2.5.164 TODO: read 7 bits*/
  function parse_IcvXF(blob, length) {
    return parsenoop(blob, length);
  }

  /* 2.5.280 */
  function parse_XFExtGradient(blob, length) {
    return parsenoop(blob, length);
  }

  /* [MS-XLS] 2.5.108 */
  function parse_ExtProp(blob) {
    var extType = blob.read_shift(2);
    var cb = blob.read_shift(2) - 4;
    var o = [extType];
    switch(extType) {
      case 0x04: case 0x05: case 0x07: case 0x08:
      case 0x09: case 0x0A: case 0x0B: case 0x0D:
        o[1] = parse_FullColorExt(blob, cb); break;
      case 0x06: o[1] = parse_XFExtGradient(blob, cb); break;
      case 0x0E: case 0x0F: o[1] = blob.read_shift(cb === 1 ? 1 : 2); break;
      default: throw new Error("Unrecognized ExtProp type: " + extType + " " + cb);
    }
    return o;
  }

  /* 2.4.355 */
  function parse_XFExt(blob, length) {
    var end = blob.l + length;
    blob.l += 2;
    var ixfe = blob.read_shift(2);
    blob.l += 2;
    var cexts = blob.read_shift(2);
    var ext = [];
    while(cexts-- > 0) ext.push(parse_ExtProp(blob, end-blob.l));
    return {ixfe:ixfe, ext:ext};
  }

  /* xf is an XF, see parse_XFExt for xfext */
  function update_xfext(xf, xfext) {
    xfext.forEach(function(xfe) {
      switch(xfe[0]) { /* 2.5.108 extPropData */
        case 0x04: break; /* foreground color */
        case 0x05: break; /* background color */
        case 0x06: break; /* gradient fill */
        case 0x07: break; /* top cell border color */
        case 0x08: break; /* bottom cell border color */
        case 0x09: break; /* left cell border color */
        case 0x0a: break; /* right cell border color */
        case 0x0b: break; /* diagonal cell border color */
        case 0x0d: break; /* text color */
        case 0x0e: break; /* font scheme */
        case 0x0f: break; /* indentation level */
      }
    });
  }

  /* 18.6 Calculation Chain */
  function parse_cc_xml(data) {
    var d = [];
    if(!data) return d;
    var i = 1;
    (data.match(tagregex)||[]).forEach(function(x) {
      var y = parsexmltag(x);
      switch(y[0]) {
        case '<?xml': break;
        /* 18.6.2  calcChain CT_CalcChain 1 */
        case '<calcChain': case '<calcChain>': case '</calcChain>': break;
        /* 18.6.1  c CT_CalcCell 1 */
        case '<c': delete y[0]; if(y.i) i = y.i; else y.i = i; d.push(y); break;
      }
    });
    return d;
  }

//function write_cc_xml(data, opts) { }

  /* [MS-XLSB] 2.6.4.1 */
  function parse_BrtCalcChainItem$(data) {
    var out = {};
    out.i = data.read_shift(4);
    var cell = {};
    cell.r = data.read_shift(4);
    cell.c = data.read_shift(4);
    out.r = encode_cell(cell);
    var flags = data.read_shift(1);
    if(flags & 0x2) out.l = '1';
    if(flags & 0x8) out.a = '1';
    return out;
  }

  /* 18.6 Calculation Chain */
  function parse_cc_bin(data, name, opts) {
    var out = [];
    var pass = false;
    recordhopper(data, function hopper_cc(val, R_n, RT) {
      switch(RT) {
        case 0x003F: /* 'BrtCalcChainItem$' */
          out.push(val); break;

        default:
          if((R_n||"").indexOf("Begin") > 0){/* empty */}
          else if((R_n||"").indexOf("End") > 0){/* empty */}
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    });
    return out;
  }

//function write_cc_bin(data, opts) { }
  /* 18.14 Supplementary Workbook Data */
  function parse_xlink_xml() {
    //var opts = _opts || {};
    //if(opts.WTF) throw "XLSX External Link";
  }

  /* [MS-XLSB] 2.1.7.25 External Link */
  function parse_xlink_bin(data, name, _opts) {
    if(!data) return data;
    var opts = _opts || {};

    var pass = false, end = false;

    recordhopper(data, function xlink_parse(val, R_n, RT) {
      if(end) return;
      switch(RT) {
        case 0x0167: /* 'BrtSupTabs' */
        case 0x016B: /* 'BrtExternTableStart' */
        case 0x016C: /* 'BrtExternTableEnd' */
        case 0x016E: /* 'BrtExternRowHdr' */
        case 0x016F: /* 'BrtExternCellBlank' */
        case 0x0170: /* 'BrtExternCellReal' */
        case 0x0171: /* 'BrtExternCellBool' */
        case 0x0172: /* 'BrtExternCellError' */
        case 0x0173: /* 'BrtExternCellString' */
        case 0x01D8: /* 'BrtExternValueMeta' */
        case 0x0241: /* 'BrtSupNameStart' */
        case 0x0242: /* 'BrtSupNameValueStart' */
        case 0x0243: /* 'BrtSupNameValueEnd' */
        case 0x0244: /* 'BrtSupNameNum' */
        case 0x0245: /* 'BrtSupNameErr' */
        case 0x0246: /* 'BrtSupNameSt' */
        case 0x0247: /* 'BrtSupNameNil' */
        case 0x0248: /* 'BrtSupNameBool' */
        case 0x0249: /* 'BrtSupNameFmla' */
        case 0x024A: /* 'BrtSupNameBits' */
        case 0x024B: /* 'BrtSupNameEnd' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;

        default:
          if((R_n||"").indexOf("Begin") > 0){/* empty */}
          else if((R_n||"").indexOf("End") > 0){/* empty */}
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT.toString(16) + " " + R_n);
      }
    }, opts);
  }
  RELS.IMG = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/image";
  RELS.DRAW = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing";
  /* 20.5 DrawingML - SpreadsheetML Drawing */
  function parse_drawing(data, rels) {
    if(!data) return "??";
    /*
	  Chartsheet Drawing:
	   - 20.5.2.35 wsDr CT_Drawing
	    - 20.5.2.1  absoluteAnchor CT_AbsoluteAnchor
	     - 20.5.2.16 graphicFrame CT_GraphicalObjectFrame
	      - 20.1.2.2.16 graphic CT_GraphicalObject
	       - 20.1.2.2.17 graphicData CT_GraphicalObjectData
          - chart reference
	   the actual type is based on the URI of the graphicData
		TODO: handle embedded charts and other types of graphics
	*/
    var id = (data.match(/<c:chart [^>]*r:id="([^"]*)"/)||["",""])[1];

    return rels['!id'][id].Target;
  }

  /* L.5.5.2 SpreadsheetML Comments + VML Schema */
  var _shapeid = 1024;
  function write_comments_vml(rId, comments) {
    var csize = [21600, 21600];
    /* L.5.2.1.2 Path Attribute */
    var bbox = ["m0,0l0",csize[1],csize[0],csize[1],csize[0],"0xe"].join(",");
    var o = [
      writextag("xml", null, { 'xmlns:v': XLMLNS.v, 'xmlns:o': XLMLNS.o, 'xmlns:x': XLMLNS.x, 'xmlns:mv': XLMLNS.mv }).replace(/\/>/,">"),
      writextag("o:shapelayout", writextag("o:idmap", null, {'v:ext':"edit", 'data':rId}), {'v:ext':"edit"}),
      writextag("v:shapetype", [
        writextag("v:stroke", null, {joinstyle:"miter"}),
        writextag("v:path", null, {gradientshapeok:"t", 'o:connecttype':"rect"})
      ].join(""), {id:"_x0000_t202", 'o:spt':202, coordsize:csize.join(","),path:bbox})
    ];
    while(_shapeid < rId * 1000) _shapeid += 1000;

    comments.forEach(function(x) { var c = decode_cell(x[0]);
      o = o.concat([
        '<v:shape' + wxt_helper({
          id:'_x0000_s' + (++_shapeid),
          type:"#_x0000_t202",
          style:"position:absolute; margin-left:80pt;margin-top:5pt;width:104pt;height:64pt;z-index:10" + (x[1].hidden ? ";visibility:hidden" : "") ,
          fillcolor:"#ECFAD4",
          strokecolor:"#edeaa1"
        }) + '>',
        writextag('v:fill', writextag("o:fill", null, {type:"gradientUnscaled", 'v:ext':"view"}), {'color2':"#BEFF82", 'angle':"-180", 'type':"gradient"}),
        writextag("v:shadow", null, {on:"t", 'obscured':"t"}),
        writextag("v:path", null, {'o:connecttype':"none"}),
        '<v:textbox><div style="text-align:left"></div></v:textbox>',
        '<x:ClientData ObjectType="Note">',
        '<x:MoveWithCells/>',
        '<x:SizeWithCells/>',
        /* Part 4 19.4.2.3 Anchor (Anchor) */
        writetag('x:Anchor', [c.c, 0, c.r, 0, c.c+3, 100, c.r+5, 100].join(",")),
        writetag('x:AutoFill', "False"),
        writetag('x:Row', String(c.r)),
        writetag('x:Column', String(c.c)),
        x[1].hidden ? '' : '<x:Visible/>',
        '</x:ClientData>',
        '</v:shape>'
      ]); });
    o.push('</xml>');
    return o.join("");
  }

  RELS.CMNT = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments";

  function parse_comments(zip, dirComments, sheets, sheetRels, opts) {
    for(var i = 0; i != dirComments.length; ++i) {
      var canonicalpath=dirComments[i];
      var comments=parse_cmnt(getzipdata(zip, canonicalpath.replace(/^\//,''), true), canonicalpath, opts);
      if(!comments || !comments.length) continue;
      // find the sheets targeted by these comments
      var sheetNames = keys(sheets);
      for(var j = 0; j != sheetNames.length; ++j) {
        var sheetName = sheetNames[j];
        var rels = sheetRels[sheetName];
        if(rels) {
          var rel = rels[canonicalpath];
          if(rel) insertCommentsIntoSheet(sheetName, sheets[sheetName], comments);
        }
      }
    }
  }

  function insertCommentsIntoSheet(sheetName, sheet, comments) {
    var dense = Array.isArray(sheet);
    var cell;
    comments.forEach(function(comment) {
      var r = decode_cell(comment.ref);
      if(dense) {
        if(!sheet[r.r]) sheet[r.r] = [];
        cell = sheet[r.r][r.c];
      } else cell = sheet[comment.ref];
      if (!cell) {
        cell = {};
        if(dense) sheet[r.r][r.c] = cell;
        else sheet[comment.ref] = cell;
        var range = safe_decode_range(sheet["!ref"]||"BDWGO1000001:A1");
        if(range.s.r > r.r) range.s.r = r.r;
        if(range.e.r < r.r) range.e.r = r.r;
        if(range.s.c > r.c) range.s.c = r.c;
        if(range.e.c < r.c) range.e.c = r.c;
        var encoded = encode_range(range);
        if (encoded !== sheet["!ref"]) sheet["!ref"] = encoded;
      }

      if (!cell.c) cell.c = [];
      var o = ({a: comment.author, t: comment.t, r: comment.r});
      if(comment.h) o.h = comment.h;
      cell.c.push(o);
    });
  }

  /* 18.7 Comments */
  function parse_comments_xml(data, opts) {
    /* 18.7.6 CT_Comments */
    if(data.match(/<(?:\w+:)?comments *\/>/)) return [];
    var authors = [];
    var commentList = [];
    var authtag = data.match(/<(?:\w+:)?authors>([\s\S]*)<\/(?:\w+:)?authors>/);
    if(authtag && authtag[1]) authtag[1].split(/<\/\w*:?author>/).forEach(function(x) {
      if(x === "" || x.trim() === "") return;
      var a = x.match(/<(?:\w+:)?author[^>]*>(.*)/);
      if(a) authors.push(a[1]);
    });
    var cmnttag = data.match(/<(?:\w+:)?commentList>([\s\S]*)<\/(?:\w+:)?commentList>/);
    if(cmnttag && cmnttag[1]) cmnttag[1].split(/<\/\w*:?comment>/).forEach(function(x) {
      if(x === "" || x.trim() === "") return;
      var cm = x.match(/<(?:\w+:)?comment[^>]*>/);
      if(!cm) return;
      var y = parsexmltag(cm[0]);
      var comment = ({ author: y.authorId && authors[y.authorId] || "sheetjsghost", ref: y.ref, guid: y.guid });
      var cell = decode_cell(y.ref);
      if(opts.sheetRows && opts.sheetRows <= cell.r) return;
      var textMatch = x.match(/<(?:\w+:)?text>([\s\S]*)<\/(?:\w+:)?text>/);
      var rt = !!textMatch && !!textMatch[1] && parse_si(textMatch[1]) || {r:"",t:"",h:""};
      comment.r = rt.r;
      if(rt.r == "<t></t>") rt.t = rt.h = "";
      comment.t = rt.t.replace(/\r\n/g,"\n").replace(/\r/g,"\n");
      if(opts.cellHTML) comment.h = rt.h;
      commentList.push(comment);
    });
    return commentList;
  }

  var CMNT_XML_ROOT = writextag('comments', null, { 'xmlns': XMLNS.main[0] });
  function write_comments_xml(data) {
    var o = [XML_HEADER, CMNT_XML_ROOT];

    var iauthor = [];
    o.push("<authors>");
    data.forEach(function(x) { x[1].forEach(function(w) { var a = escapexml(w.a);
      if(iauthor.indexOf(a) > -1) return;
      iauthor.push(a);
      o.push("<author>" + a + "</author>");
    }); });
    o.push("</authors>");
    o.push("<commentList>");
    data.forEach(function(d) {
      d[1].forEach(function(c) {
        /* 18.7.3 CT_Comment */
        o.push('<comment ref="' + d[0] + '" authorId="' + iauthor.indexOf(escapexml(c.a)) + '"><text>');
        o.push(writetag("t", c.t == null ? "" : escapexml(c.t)));
        o.push('</text></comment>');
      });
    });
    o.push("</commentList>");
    if(o.length>2) { o[o.length] = ('</comments>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* [MS-XLSB] 2.4.28 BrtBeginComment */
  function parse_BrtBeginComment(data) {
    var out = {};
    out.iauthor = data.read_shift(4);
    var rfx = parse_UncheckedRfX(data, 16);
    out.rfx = rfx.s;
    out.ref = encode_cell(rfx.s);
    data.l += 16; /*var guid = parse_GUID(data); */
    return out;
  }
  function write_BrtBeginComment(data, o) {
    if(o == null) o = new_buf(36);
    o.write_shift(4, data[1].iauthor);
    write_UncheckedRfX((data[0]), o);
    o.write_shift(4, 0);
    o.write_shift(4, 0);
    o.write_shift(4, 0);
    o.write_shift(4, 0);
    return o;
  }

  /* [MS-XLSB] 2.4.327 BrtCommentAuthor */
  var parse_BrtCommentAuthor = parse_XLWideString;
  function write_BrtCommentAuthor(data) { return write_XLWideString(data.slice(0, 54)); }

  /* [MS-XLSB] 2.1.7.8 Comments */
  function parse_comments_bin(data, opts) {
    var out = [];
    var authors = [];
    var c = {};
    var pass = false;
    recordhopper(data, function hopper_cmnt(val, R_n, RT) {
      switch(RT) {
        case 0x0278: /* 'BrtCommentAuthor' */
          authors.push(val); break;
        case 0x027B: /* 'BrtBeginComment' */
          c = val; break;
        case 0x027D: /* 'BrtCommentText' */
          c.t = val.t; c.h = val.h; c.r = val.r; break;
        case 0x027C: /* 'BrtEndComment' */
          c.author = authors[c.iauthor];
          delete c.iauthor;
          if(opts.sheetRows && opts.sheetRows <= c.rfx.r) break;
          if(!c.t) c.t = "";
          delete c.rfx; out.push(c); break;

        case 0x0C00: /* 'BrtUid' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;
        case 0x0025: /* 'BrtACBegin' */ break;
        case 0x0026: /* 'BrtACEnd' */ break;


        default:
          if((R_n||"").indexOf("Begin") > 0){/* empty */}
          else if((R_n||"").indexOf("End") > 0){/* empty */}
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    });
    return out;
  }

  function write_comments_bin(data) {
    var ba = buf_array();
    var iauthor = [];
    write_record(ba, "BrtBeginComments");

    write_record(ba, "BrtBeginCommentAuthors");
    data.forEach(function(comment) {
      comment[1].forEach(function(c) {
        if(iauthor.indexOf(c.a) > -1) return;
        iauthor.push(c.a.slice(0,54));
        write_record(ba, "BrtCommentAuthor", write_BrtCommentAuthor(c.a));
      });
    });
    write_record(ba, "BrtEndCommentAuthors");

    write_record(ba, "BrtBeginCommentList");
    data.forEach(function(comment) {
      comment[1].forEach(function(c) {
        c.iauthor = iauthor.indexOf(c.a);
        var range = {s:decode_cell(comment[0]),e:decode_cell(comment[0])};
        write_record(ba, "BrtBeginComment", write_BrtBeginComment([range, c]));
        if(c.t && c.t.length > 0) write_record(ba, "BrtCommentText", write_BrtCommentText(c));
        write_record(ba, "BrtEndComment");
        delete c.iauthor;
      });
    });
    write_record(ba, "BrtEndCommentList");

    write_record(ba, "BrtEndComments");
    return ba.end();
  }
  var CT_VBA = "application/vnd.ms-office.vbaProject";
  function make_vba_xls(cfb) {
    var newcfb = CFB.utils.cfb_new({root:"R"});
    cfb.FullPaths.forEach(function(p, i) {
      if(p.slice(-1) === "/" || !p.match(/_VBA_PROJECT_CUR/)) return;
      var newpath = p.replace(/^[^\/]*/,"R").replace(/\/_VBA_PROJECT_CUR\u0000*/, "");
      CFB.utils.cfb_add(newcfb, newpath, cfb.FileIndex[i].content);
    });
    return CFB.write(newcfb);
  }

  function fill_vba_xls(cfb, vba) {
    vba.FullPaths.forEach(function(p, i) {
      if(i == 0) return;
      var newpath = p.replace(/[^\/]*[\/]/, "/_VBA_PROJECT_CUR/");
      if(newpath.slice(-1) !== "/") CFB.utils.cfb_add(cfb, newpath, vba.FileIndex[i].content);
    });
  }

  var VBAFMTS = [ "xlsb", "xlsm", "xlam", "biff8", "xla" ];

  RELS.DS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/dialogsheet";
  RELS.MS = "http://schemas.microsoft.com/office/2006/relationships/xlMacrosheet";

  /* macro and dialog sheet stubs */
  function parse_ds_bin() { return {'!type':'dialog'}; }
  function parse_ds_xml() { return {'!type':'dialog'}; }
  function parse_ms_bin() { return {'!type':'macro'}; }
  function parse_ms_xml() { return {'!type':'macro'}; }
  /* TODO: it will be useful to parse the function str */
  var rc_to_a1 = (function(){
    var rcregex = /(^|[^A-Za-z])R(\[?)(-?\d+|)\]?C(\[?)(-?\d+|)\]?/g;
    var rcbase = ({r:0,c:0});
    function rcfunc($$,$1,$2,$3,$4,$5) {
      var R = $3.length>0?parseInt($3,10)|0:0, C = $5.length>0?parseInt($5,10)|0:0;
      if(C<0 && $4.length === 0) C=0;
      var cRel = false, rRel = false;
      if($4.length > 0 || $5.length == 0) cRel = true; if(cRel) C += rcbase.c; else --C;
      if($2.length > 0 || $3.length == 0) rRel = true; if(rRel) R += rcbase.r; else --R;
      return $1 + (cRel ? "" : "$") + encode_col(C) + (rRel ? "" : "$") + encode_row(R);
    }
    return function rc_to_a1(fstr, base) {
      rcbase = base;
      return fstr.replace(rcregex, rcfunc);
    };
  })();

  var crefregex = /(^|[^._A-Z0-9])([$]?)([A-Z]{1,2}|[A-W][A-Z]{2}|X[A-E][A-Z]|XF[A-D])([$]?)([1-9]\d{0,5}|10[0-3]\d{4}|104[0-7]\d{3}|1048[0-4]\d{2}|10485[0-6]\d|104857[0-6])(?![_.\(A-Za-z0-9])/g;
  var a1_to_rc =(function(){
    return function a1_to_rc(fstr, base) {
      return fstr.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
        var c = decode_col($3) - ($2 ? 0 : base.c);
        var r = decode_row($5) - ($4 ? 0 : base.r);
        var R = (r == 0 ? "" : !$4 ? "[" + r + "]" : (r+1));
        var C = (c == 0 ? "" : !$2 ? "[" + c + "]" : (c+1));
        return $1 + "R" + R + "C" + C;
      });
    };
  })();

  /* no defined name can collide with a valid cell address A1:XFD1048576 ... except LOG10! */
  function shift_formula_str(f, delta) {
    return f.replace(crefregex, function($0, $1, $2, $3, $4, $5) {
      return $1+($2=="$" ? $2+$3 : encode_col(decode_col($3)+delta.c))+($4=="$" ? $4+$5 : encode_row(decode_row($5) + delta.r));
    });
  }

  function shift_formula_xlsx(f, range, cell) {
    var r = decode_range(range), s = r.s, c = decode_cell(cell);
    var delta = {r:c.r - s.r, c:c.c - s.c};
    return shift_formula_str(f, delta);
  }

  /* TODO: parse formula */
  function fuzzyfmla(f) {
    if(f.length == 1) return false;
    return true;
  }

  function _xlfn(f) {
    return f.replace(/_xlfn\./g,"");
  }
  function parseread1(blob) { blob.l+=1; return; }

  /* [MS-XLS] 2.5.51 */
  function parse_ColRelU(blob, length) {
    var c = blob.read_shift(length == 1 ? 1 : 2);
    return [c & 0x3FFF, (c >> 14) & 1, (c >> 15) & 1];
  }

  /* [MS-XLS] 2.5.198.105 ; [MS-XLSB] 2.5.97.89 */
  function parse_RgceArea(blob, length, opts) {
    var w = 2;
    if(opts) {
      if(opts.biff >= 2 && opts.biff <= 5) return parse_RgceArea_BIFF2(blob, length, opts);
      else if(opts.biff == 12) w = 4;
    }
    var r=blob.read_shift(w), R=blob.read_shift(w);
    var c=parse_ColRelU(blob, 2);
    var C=parse_ColRelU(blob, 2);
    return { s:{r:r, c:c[0], cRel:c[1], rRel:c[2]}, e:{r:R, c:C[0], cRel:C[1], rRel:C[2]} };
  }
  /* BIFF 2-5 encodes flags in the row field */
  function parse_RgceArea_BIFF2(blob) {
    var r=parse_ColRelU(blob, 2), R=parse_ColRelU(blob, 2);
    var c=blob.read_shift(1);
    var C=blob.read_shift(1);
    return { s:{r:r[0], c:c, cRel:r[1], rRel:r[2]}, e:{r:R[0], c:C, cRel:R[1], rRel:R[2]} };
  }

  /* [MS-XLS] 2.5.198.105 ; [MS-XLSB] 2.5.97.90 */
  function parse_RgceAreaRel(blob, length, opts) {
    if(opts.biff < 8) return parse_RgceArea_BIFF2(blob, length, opts);
    var r=blob.read_shift(opts.biff == 12 ? 4 : 2), R=blob.read_shift(opts.biff == 12 ? 4 : 2);
    var c=parse_ColRelU(blob, 2);
    var C=parse_ColRelU(blob, 2);
    return { s:{r:r, c:c[0], cRel:c[1], rRel:c[2]}, e:{r:R, c:C[0], cRel:C[1], rRel:C[2]} };
  }

  /* [MS-XLS] 2.5.198.109 ; [MS-XLSB] 2.5.97.91 */
  function parse_RgceLoc(blob, length, opts) {
    if(opts && opts.biff >= 2 && opts.biff <= 5) return parse_RgceLoc_BIFF2(blob, length, opts);
    var r = blob.read_shift(opts && opts.biff == 12 ? 4 : 2);
    var c = parse_ColRelU(blob, 2);
    return {r:r, c:c[0], cRel:c[1], rRel:c[2]};
  }
  function parse_RgceLoc_BIFF2(blob) {
    var r = parse_ColRelU(blob, 2);
    var c = blob.read_shift(1);
    return {r:r[0], c:c, cRel:r[1], rRel:r[2]};
  }

  /* [MS-XLS] 2.5.198.107, 2.5.47 */
  function parse_RgceElfLoc(blob) {
    var r = blob.read_shift(2);
    var c = blob.read_shift(2);
    return {r:r, c:c & 0xFF, fQuoted:!!(c & 0x4000), cRel:c>>15, rRel:c>>15 };
  }

  /* [MS-XLS] 2.5.198.111 ; [MS-XLSB] 2.5.97.92 TODO */
  function parse_RgceLocRel(blob, length, opts) {
    var biff = opts && opts.biff ? opts.biff : 8;
    if(biff >= 2 && biff <= 5) return parse_RgceLocRel_BIFF2(blob, length, opts);
    var r = blob.read_shift(biff >= 12 ? 4 : 2);
    var cl = blob.read_shift(2);
    var cRel = (cl & 0x4000) >> 14, rRel = (cl & 0x8000) >> 15;
    cl &= 0x3FFF;
    if(rRel == 1) while(r > 0x7FFFF) r -= 0x100000;
    if(cRel == 1) while(cl > 0x1FFF) cl = cl - 0x4000;
    return {r:r,c:cl,cRel:cRel,rRel:rRel};
  }
  function parse_RgceLocRel_BIFF2(blob) {
    var rl = blob.read_shift(2);
    var c = blob.read_shift(1);
    var rRel = (rl & 0x8000) >> 15, cRel = (rl & 0x4000) >> 14;
    rl &= 0x3FFF;
    if(rRel == 1 && rl >= 0x2000) rl = rl - 0x4000;
    if(cRel == 1 && c >= 0x80) c = c - 0x100;
    return {r:rl,c:c,cRel:cRel,rRel:rRel};
  }

  /* [MS-XLS] 2.5.198.27 ; [MS-XLSB] 2.5.97.18 */
  function parse_PtgArea(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    var area = parse_RgceArea(blob, opts.biff >= 2 && opts.biff <= 5 ? 6 : 8, opts);
    return [type, area];
  }

  /* [MS-XLS] 2.5.198.28 ; [MS-XLSB] 2.5.97.19 */
  function parse_PtgArea3d(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    var ixti = blob.read_shift(2, 'i');
    var w = 8;
    if(opts) switch(opts.biff) {
      case 5: blob.l += 12; w = 6; break;
      case 12: w = 12; break;
    }
    var area = parse_RgceArea(blob, w, opts);
    return [type, ixti, area];
  }

  /* [MS-XLS] 2.5.198.29 ; [MS-XLSB] 2.5.97.20 */
  function parse_PtgAreaErr(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    blob.l += opts && (opts.biff > 8) ? 12 : (opts.biff < 8 ? 6 : 8);
    return [type];
  }
  /* [MS-XLS] 2.5.198.30 ; [MS-XLSB] 2.5.97.21 */
  function parse_PtgAreaErr3d(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    var ixti = blob.read_shift(2);
    var w = 8;
    if(opts) switch(opts.biff) {
      case 5: blob.l += 12; w = 6; break;
      case 12: w = 12; break;
    }
    blob.l += w;
    return [type, ixti];
  }

  /* [MS-XLS] 2.5.198.31 ; [MS-XLSB] 2.5.97.22 */
  function parse_PtgAreaN(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    var area = parse_RgceAreaRel(blob, length - 1, opts);
    return [type, area];
  }

  /* [MS-XLS] 2.5.198.32 ; [MS-XLSB] 2.5.97.23 */
  function parse_PtgArray(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    blob.l += opts.biff == 2 ? 6 : opts.biff == 12 ? 14 : 7;
    return [type];
  }

  /* [MS-XLS] 2.5.198.33 ; [MS-XLSB] 2.5.97.24 */
  function parse_PtgAttrBaxcel(blob) {
    var bitSemi = blob[blob.l+1] & 0x01; /* 1 = volatile */
    var bitBaxcel = 1;
    blob.l += 4;
    return [bitSemi, bitBaxcel];
  }

  /* [MS-XLS] 2.5.198.34 ; [MS-XLSB] 2.5.97.25 */
  function parse_PtgAttrChoose(blob, length, opts) {
    blob.l +=2;
    var offset = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    var o = [];
    /* offset is 1 less than the number of elements */
    for(var i = 0; i <= offset; ++i) o.push(blob.read_shift(opts && opts.biff == 2 ? 1 : 2));
    return o;
  }

  /* [MS-XLS] 2.5.198.35 ; [MS-XLSB] 2.5.97.26 */
  function parse_PtgAttrGoto(blob, length, opts) {
    var bitGoto = (blob[blob.l+1] & 0xFF) ? 1 : 0;
    blob.l += 2;
    return [bitGoto, blob.read_shift(opts && opts.biff == 2 ? 1 : 2)];
  }

  /* [MS-XLS] 2.5.198.36 ; [MS-XLSB] 2.5.97.27 */
  function parse_PtgAttrIf(blob, length, opts) {
    var bitIf = (blob[blob.l+1] & 0xFF) ? 1 : 0;
    blob.l += 2;
    return [bitIf, blob.read_shift(opts && opts.biff == 2 ? 1 : 2)];
  }

  /* [MS-XLSB] 2.5.97.28 */
  function parse_PtgAttrIfError(blob) {
    var bitIf = (blob[blob.l+1] & 0xFF) ? 1 : 0;
    blob.l += 2;
    return [bitIf, blob.read_shift(2)];
  }

  /* [MS-XLS] 2.5.198.37 ; [MS-XLSB] 2.5.97.29 */
  function parse_PtgAttrSemi(blob, length, opts) {
    var bitSemi = (blob[blob.l+1] & 0xFF) ? 1 : 0;
    blob.l += opts && opts.biff == 2 ? 3 : 4;
    return [bitSemi];
  }

  /* [MS-XLS] 2.5.198.40 ; [MS-XLSB] 2.5.97.32 */
  function parse_PtgAttrSpaceType(blob) {
    var type = blob.read_shift(1), cch = blob.read_shift(1);
    return [type, cch];
  }

  /* [MS-XLS] 2.5.198.38 ; [MS-XLSB] 2.5.97.30 */
  function parse_PtgAttrSpace(blob) {
    blob.read_shift(2);
    return parse_PtgAttrSpaceType(blob, 2);
  }

  /* [MS-XLS] 2.5.198.39 ; [MS-XLSB] 2.5.97.31 */
  function parse_PtgAttrSpaceSemi(blob) {
    blob.read_shift(2);
    return parse_PtgAttrSpaceType(blob, 2);
  }

  /* [MS-XLS] 2.5.198.84 ; [MS-XLSB] 2.5.97.68 TODO */
  function parse_PtgRef(blob, length, opts) {
    //var ptg = blob[blob.l] & 0x1F;
    var type = (blob[blob.l] & 0x60)>>5;
    blob.l += 1;
    var loc = parse_RgceLoc(blob, 0, opts);
    return [type, loc];
  }

  /* [MS-XLS] 2.5.198.88 ; [MS-XLSB] 2.5.97.72 TODO */
  function parse_PtgRefN(blob, length, opts) {
    var type = (blob[blob.l] & 0x60)>>5;
    blob.l += 1;
    var loc = parse_RgceLocRel(blob, 0, opts);
    return [type, loc];
  }

  /* [MS-XLS] 2.5.198.85 ; [MS-XLSB] 2.5.97.69 TODO */
  function parse_PtgRef3d(blob, length, opts) {
    var type = (blob[blob.l] & 0x60)>>5;
    blob.l += 1;
    var ixti = blob.read_shift(2); // XtiIndex
    if(opts && opts.biff == 5) blob.l += 12;
    var loc = parse_RgceLoc(blob, 0, opts); // TODO: or RgceLocRel
    return [type, ixti, loc];
  }


  /* [MS-XLS] 2.5.198.62 ; [MS-XLSB] 2.5.97.45 TODO */
  function parse_PtgFunc(blob, length, opts) {
    //var ptg = blob[blob.l] & 0x1F;
    var type = (blob[blob.l] & 0x60)>>5;
    blob.l += 1;
    var iftab = blob.read_shift(opts && opts.biff <= 3 ? 1 : 2);
    return [FtabArgc[iftab], Ftab[iftab], type];
  }
  /* [MS-XLS] 2.5.198.63 ; [MS-XLSB] 2.5.97.46 TODO */
  function parse_PtgFuncVar(blob, length, opts) {
    var type = blob[blob.l++];
    var cparams = blob.read_shift(1), tab = opts && opts.biff <= 3 ? [(type == 0x58 ? -1 : 0), blob.read_shift(1)]: parsetab(blob);
    return [cparams, (tab[0] === 0 ? Ftab : Cetab)[tab[1]]];
  }

  function parsetab(blob) {
    return [blob[blob.l+1]>>7, blob.read_shift(2) & 0x7FFF];
  }

  /* [MS-XLS] 2.5.198.41 ; [MS-XLSB] 2.5.97.33 */
  function parse_PtgAttrSum(blob, length, opts) {
    blob.l += opts && opts.biff == 2 ? 3 : 4; return;
  }

  /* [MS-XLS] 2.5.198.58 ; [MS-XLSB] 2.5.97.40 */
  function parse_PtgExp(blob, length, opts) {
    blob.l++;
    if(opts && opts.biff == 12) return [blob.read_shift(4, 'i'), 0];
    var row = blob.read_shift(2);
    var col = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    return [row, col];
  }

  /* [MS-XLS] 2.5.198.57 ; [MS-XLSB] 2.5.97.39 */
  function parse_PtgErr(blob) { blob.l++; return BErr[blob.read_shift(1)]; }

  /* [MS-XLS] 2.5.198.66 ; [MS-XLSB] 2.5.97.49 */
  function parse_PtgInt(blob) { blob.l++; return blob.read_shift(2); }

  /* [MS-XLS] 2.5.198.42 ; [MS-XLSB] 2.5.97.34 */
  function parse_PtgBool(blob) { blob.l++; return blob.read_shift(1)!==0;}

  /* [MS-XLS] 2.5.198.79 ; [MS-XLSB] 2.5.97.63 */
  function parse_PtgNum(blob) { blob.l++; return parse_Xnum(blob, 8); }

  /* [MS-XLS] 2.5.198.89 ; [MS-XLSB] 2.5.97.74 */
  function parse_PtgStr(blob, length, opts) { blob.l++; return parse_ShortXLUnicodeString(blob, length-1, opts); }

  /* [MS-XLS] 2.5.192.112 + 2.5.192.11{3,4,5,6,7} */
  /* [MS-XLSB] 2.5.97.93 + 2.5.97.9{4,5,6,7} */
  function parse_SerAr(blob, biff) {
    var val = [blob.read_shift(1)];
    if(biff == 12) switch(val[0]) {
      case 0x02: val[0] = 0x04; break; /* SerBool */
      case 0x04: val[0] = 0x10; break; /* SerErr */
      case 0x00: val[0] = 0x01; break; /* SerNum */
      case 0x01: val[0] = 0x02; break; /* SerStr */
    }
    switch(val[0]) {
      case 0x04: /* SerBool -- boolean */
        val[1] = parsebool(blob, 1) ? 'TRUE' : 'FALSE';
        if(biff != 12) blob.l += 7; break;
      case 0x25: /* appears to be an alias */
      case 0x10: /* SerErr -- error */
        val[1] = BErr[blob[blob.l]];
        blob.l += ((biff == 12) ? 4 : 8); break;
      case 0x00: /* SerNil -- honestly, I'm not sure how to reproduce this */
        blob.l += 8; break;
      case 0x01: /* SerNum -- Xnum */
        val[1] = parse_Xnum(blob, 8); break;
      case 0x02: /* SerStr -- XLUnicodeString (<256 chars) */
        val[1] = parse_XLUnicodeString2(blob, 0, {biff:biff > 0 && biff < 8 ? 2 : biff}); break;
      default: throw new Error("Bad SerAr: " + val[0]); /* Unreachable */
    }
    return val;
  }

  /* [MS-XLS] 2.5.198.61 ; [MS-XLSB] 2.5.97.44 */
  function parse_PtgExtraMem(blob, cce, opts) {
    var count = blob.read_shift((opts.biff == 12) ? 4 : 2);
    var out = [];
    for(var i = 0; i != count; ++i) out.push(((opts.biff == 12) ? parse_UncheckedRfX : parse_Ref8U)(blob, 8));
    return out;
  }

  /* [MS-XLS] 2.5.198.59 ; [MS-XLSB] 2.5.97.41 */
  function parse_PtgExtraArray(blob, length, opts) {
    var rows = 0, cols = 0;
    if(opts.biff == 12) {
      rows = blob.read_shift(4); // DRw
      cols = blob.read_shift(4); // DCol
    } else {
      cols = 1 + blob.read_shift(1); //DColByteU
      rows = 1 + blob.read_shift(2); //DRw
    }
    if(opts.biff >= 2 && opts.biff < 8) { --rows; if(--cols == 0) cols = 0x100; }
    // $FlowIgnore
    for(var i = 0, o = []; i != rows && (o[i] = []); ++i)
      for(var j = 0; j != cols; ++j) o[i][j] = parse_SerAr(blob, opts.biff);
    return o;
  }

  /* [MS-XLS] 2.5.198.76 ; [MS-XLSB] 2.5.97.60 */
  function parse_PtgName(blob, length, opts) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var w = (!opts || (opts.biff >= 8)) ? 4 : 2;
    var nameindex = blob.read_shift(w);
    switch(opts.biff) {
      case 2: blob.l += 5; break;
      case 3: case 4: blob.l += 8; break;
      case 5: blob.l += 12; break;
    }
    return [type, 0, nameindex];
  }

  /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61 */
  function parse_PtgNameX(blob, length, opts) {
    if(opts.biff == 5) return parse_PtgNameX_BIFF5(blob, length, opts);
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var ixti = blob.read_shift(2); // XtiIndex
    var nameindex = blob.read_shift(4);
    return [type, ixti, nameindex];
  }
  function parse_PtgNameX_BIFF5(blob) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var ixti = blob.read_shift(2, 'i'); // XtiIndex
    blob.l += 8;
    var nameindex = blob.read_shift(2);
    blob.l += 12;
    return [type, ixti, nameindex];
  }

  /* [MS-XLS] 2.5.198.70 ; [MS-XLSB] 2.5.97.54 */
  function parse_PtgMemArea(blob, length, opts) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    blob.l += (opts && opts.biff == 2 ? 3 : 4);
    var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    return [type, cce];
  }

  /* [MS-XLS] 2.5.198.72 ; [MS-XLSB] 2.5.97.56 */
  function parse_PtgMemFunc(blob, length, opts) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var cce = blob.read_shift(opts && opts.biff == 2 ? 1 : 2);
    return [type, cce];
  }


  /* [MS-XLS] 2.5.198.86 ; [MS-XLSB] 2.5.97.69 */
  function parse_PtgRefErr(blob, length, opts) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    blob.l += 4;
    if(opts.biff < 8) blob.l--;
    if(opts.biff == 12) blob.l += 2;
    return [type];
  }

  /* [MS-XLS] 2.5.198.87 ; [MS-XLSB] 2.5.97.71 */
  function parse_PtgRefErr3d(blob, length, opts) {
    var type = (blob[blob.l++] & 0x60) >> 5;
    var ixti = blob.read_shift(2);
    var w = 4;
    if(opts) switch(opts.biff) {
      case 5: w = 15; break;
      case 12: w = 6; break;
    }
    blob.l += w;
    return [type, ixti];
  }

  /* [MS-XLS] 2.5.198.71 ; [MS-XLSB] 2.5.97.55 */
  var parse_PtgMemErr = parsenoop;
  /* [MS-XLS] 2.5.198.73  ; [MS-XLSB] 2.5.97.57 */
  var parse_PtgMemNoMem = parsenoop;
  /* [MS-XLS] 2.5.198.92 */
  var parse_PtgTbl = parsenoop;

  function parse_PtgElfLoc(blob, length, opts) {
    blob.l += 2;
    return [parse_RgceElfLoc(blob, 4, opts)];
  }
  function parse_PtgElfNoop(blob) {
    blob.l += 6;
    return [];
  }
  /* [MS-XLS] 2.5.198.46 */
  var parse_PtgElfCol = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.47 */
  var parse_PtgElfColS = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.48 */
  var parse_PtgElfColSV = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.49 */
  var parse_PtgElfColV = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.50 */
  function parse_PtgElfLel(blob) {
    blob.l += 2;
    return [parseuint16(blob), blob.read_shift(2) & 0x01];
  }
  /* [MS-XLS] 2.5.198.51 */
  var parse_PtgElfRadical = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.52 */
  var parse_PtgElfRadicalLel = parse_PtgElfLel;
  /* [MS-XLS] 2.5.198.53 */
  var parse_PtgElfRadicalS = parse_PtgElfNoop;
  /* [MS-XLS] 2.5.198.54 */
  var parse_PtgElfRw = parse_PtgElfLoc;
  /* [MS-XLS] 2.5.198.55 */
  var parse_PtgElfRwV = parse_PtgElfLoc;

  /* [MS-XLSB] 2.5.97.52 TODO */
  var PtgListRT = [
    "Data",
    "All",
    "Headers",
    "??",
    "?Data2",
    "??",
    "?DataHeaders",
    "??",
    "Totals",
    "??",
    "??",
    "??",
    "?DataTotals",
    "??",
    "??",
    "??",
    "?Current"
  ];
  function parse_PtgList(blob) {
    blob.l += 2;
    var ixti = blob.read_shift(2);
    var flags = blob.read_shift(2);
    var idx = blob.read_shift(4);
    var c = blob.read_shift(2);
    var C = blob.read_shift(2);
    var rt = PtgListRT[(flags >> 2) & 0x1F];
    return {ixti: ixti, coltype:(flags&0x3), rt:rt, idx:idx, c:c, C:C};
  }
  /* [MS-XLS] 2.5.198.91 ; [MS-XLSB] 2.5.97.76 */
  function parse_PtgSxName(blob) {
    blob.l += 2;
    return [blob.read_shift(4)];
  }

  /* [XLS] old spec */
  function parse_PtgSheet(blob, length, opts) {
    blob.l += 5;
    blob.l += 2;
    blob.l += (opts.biff == 2 ? 1 : 4);
    return ["PTGSHEET"];
  }
  function parse_PtgEndSheet(blob, length, opts) {
    blob.l += (opts.biff == 2 ? 4 : 5);
    return ["PTGENDSHEET"];
  }
  function parse_PtgMemAreaN(blob) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var cce = blob.read_shift(2);
    return [type, cce];
  }
  function parse_PtgMemNoMemN(blob) {
    var type = (blob.read_shift(1) >>> 5) & 0x03;
    var cce = blob.read_shift(2);
    return [type, cce];
  }
  function parse_PtgAttrNoop(blob) {
    blob.l += 4;
    return [0, 0];
  }

  /* [MS-XLS] 2.5.198.25 ; [MS-XLSB] 2.5.97.16 */
  var PtgTypes = {
    0x01: { n:'PtgExp', f:parse_PtgExp },
    0x02: { n:'PtgTbl', f:parse_PtgTbl },
    0x03: { n:'PtgAdd', f:parseread1 },
    0x04: { n:'PtgSub', f:parseread1 },
    0x05: { n:'PtgMul', f:parseread1 },
    0x06: { n:'PtgDiv', f:parseread1 },
    0x07: { n:'PtgPower', f:parseread1 },
    0x08: { n:'PtgConcat', f:parseread1 },
    0x09: { n:'PtgLt', f:parseread1 },
    0x0A: { n:'PtgLe', f:parseread1 },
    0x0B: { n:'PtgEq', f:parseread1 },
    0x0C: { n:'PtgGe', f:parseread1 },
    0x0D: { n:'PtgGt', f:parseread1 },
    0x0E: { n:'PtgNe', f:parseread1 },
    0x0F: { n:'PtgIsect', f:parseread1 },
    0x10: { n:'PtgUnion', f:parseread1 },
    0x11: { n:'PtgRange', f:parseread1 },
    0x12: { n:'PtgUplus', f:parseread1 },
    0x13: { n:'PtgUminus', f:parseread1 },
    0x14: { n:'PtgPercent', f:parseread1 },
    0x15: { n:'PtgParen', f:parseread1 },
    0x16: { n:'PtgMissArg', f:parseread1 },
    0x17: { n:'PtgStr', f:parse_PtgStr },
    0x1A: { n:'PtgSheet', f:parse_PtgSheet },
    0x1B: { n:'PtgEndSheet', f:parse_PtgEndSheet },
    0x1C: { n:'PtgErr', f:parse_PtgErr },
    0x1D: { n:'PtgBool', f:parse_PtgBool },
    0x1E: { n:'PtgInt', f:parse_PtgInt },
    0x1F: { n:'PtgNum', f:parse_PtgNum },
    0x20: { n:'PtgArray', f:parse_PtgArray },
    0x21: { n:'PtgFunc', f:parse_PtgFunc },
    0x22: { n:'PtgFuncVar', f:parse_PtgFuncVar },
    0x23: { n:'PtgName', f:parse_PtgName },
    0x24: { n:'PtgRef', f:parse_PtgRef },
    0x25: { n:'PtgArea', f:parse_PtgArea },
    0x26: { n:'PtgMemArea', f:parse_PtgMemArea },
    0x27: { n:'PtgMemErr', f:parse_PtgMemErr },
    0x28: { n:'PtgMemNoMem', f:parse_PtgMemNoMem },
    0x29: { n:'PtgMemFunc', f:parse_PtgMemFunc },
    0x2A: { n:'PtgRefErr', f:parse_PtgRefErr },
    0x2B: { n:'PtgAreaErr', f:parse_PtgAreaErr },
    0x2C: { n:'PtgRefN', f:parse_PtgRefN },
    0x2D: { n:'PtgAreaN', f:parse_PtgAreaN },
    0x2E: { n:'PtgMemAreaN', f:parse_PtgMemAreaN },
    0x2F: { n:'PtgMemNoMemN', f:parse_PtgMemNoMemN },
    0x39: { n:'PtgNameX', f:parse_PtgNameX },
    0x3A: { n:'PtgRef3d', f:parse_PtgRef3d },
    0x3B: { n:'PtgArea3d', f:parse_PtgArea3d },
    0x3C: { n:'PtgRefErr3d', f:parse_PtgRefErr3d },
    0x3D: { n:'PtgAreaErr3d', f:parse_PtgAreaErr3d },
    0xFF: {}
  };
  /* These are duplicated in the PtgTypes table */
  var PtgDupes = {
    0x40: 0x20, 0x60: 0x20,
    0x41: 0x21, 0x61: 0x21,
    0x42: 0x22, 0x62: 0x22,
    0x43: 0x23, 0x63: 0x23,
    0x44: 0x24, 0x64: 0x24,
    0x45: 0x25, 0x65: 0x25,
    0x46: 0x26, 0x66: 0x26,
    0x47: 0x27, 0x67: 0x27,
    0x48: 0x28, 0x68: 0x28,
    0x49: 0x29, 0x69: 0x29,
    0x4A: 0x2A, 0x6A: 0x2A,
    0x4B: 0x2B, 0x6B: 0x2B,
    0x4C: 0x2C, 0x6C: 0x2C,
    0x4D: 0x2D, 0x6D: 0x2D,
    0x4E: 0x2E, 0x6E: 0x2E,
    0x4F: 0x2F, 0x6F: 0x2F,
    0x58: 0x22, 0x78: 0x22,
    0x59: 0x39, 0x79: 0x39,
    0x5A: 0x3A, 0x7A: 0x3A,
    0x5B: 0x3B, 0x7B: 0x3B,
    0x5C: 0x3C, 0x7C: 0x3C,
    0x5D: 0x3D, 0x7D: 0x3D
  };
  (function(){for(var y in PtgDupes) PtgTypes[y] = PtgTypes[PtgDupes[y]];})();

  var Ptg18 = {
    0x01: { n:'PtgElfLel', f:parse_PtgElfLel },
    0x02: { n:'PtgElfRw', f:parse_PtgElfRw },
    0x03: { n:'PtgElfCol', f:parse_PtgElfCol },
    0x06: { n:'PtgElfRwV', f:parse_PtgElfRwV },
    0x07: { n:'PtgElfColV', f:parse_PtgElfColV },
    0x0A: { n:'PtgElfRadical', f:parse_PtgElfRadical },
    0x0B: { n:'PtgElfRadicalS', f:parse_PtgElfRadicalS },
    0x0D: { n:'PtgElfColS', f:parse_PtgElfColS },
    0x0F: { n:'PtgElfColSV', f:parse_PtgElfColSV },
    0x10: { n:'PtgElfRadicalLel', f:parse_PtgElfRadicalLel },
    0x19: { n:'PtgList', f:parse_PtgList },
    0x1D: { n:'PtgSxName', f:parse_PtgSxName },
    0xFF: {}
  };
  var Ptg19 = {
    0x00: { n:'PtgAttrNoop', f:parse_PtgAttrNoop },
    0x01: { n:'PtgAttrSemi', f:parse_PtgAttrSemi },
    0x02: { n:'PtgAttrIf', f:parse_PtgAttrIf },
    0x04: { n:'PtgAttrChoose', f:parse_PtgAttrChoose },
    0x08: { n:'PtgAttrGoto', f:parse_PtgAttrGoto },
    0x10: { n:'PtgAttrSum', f:parse_PtgAttrSum },
    0x20: { n:'PtgAttrBaxcel', f:parse_PtgAttrBaxcel },
    0x40: { n:'PtgAttrSpace', f:parse_PtgAttrSpace },
    0x41: { n:'PtgAttrSpaceSemi', f:parse_PtgAttrSpaceSemi },
    0x80: { n:'PtgAttrIfError', f:parse_PtgAttrIfError },
    0xFF: {}
  };
  Ptg19[0x21] = Ptg19[0x20];

  /* [MS-XLS] 2.5.198.103 ; [MS-XLSB] 2.5.97.87 */
  function parse_RgbExtra(blob, length, rgce, opts) {
    if(opts.biff < 8) return parsenoop(blob, length);
    var target = blob.l + length;
    var o = [];
    for(var i = 0; i !== rgce.length; ++i) {
      switch(rgce[i][0]) {
        case 'PtgArray': /* PtgArray -> PtgExtraArray */
          rgce[i][1] = parse_PtgExtraArray(blob, 0, opts);
          o.push(rgce[i][1]);
          break;
        case 'PtgMemArea': /* PtgMemArea -> PtgExtraMem */
          rgce[i][2] = parse_PtgExtraMem(blob, rgce[i][1], opts);
          o.push(rgce[i][2]);
          break;
        case 'PtgExp': /* PtgExp -> PtgExtraCol */
          if(opts && opts.biff == 12) {
            rgce[i][1][1] = blob.read_shift(4);
            o.push(rgce[i][1]);
          } break;
        case 'PtgList': /* TODO: PtgList -> PtgExtraList */
        case 'PtgElfRadicalS': /* TODO: PtgElfRadicalS -> PtgExtraElf */
        case 'PtgElfColS': /* TODO: PtgElfColS -> PtgExtraElf */
        case 'PtgElfColSV': /* TODO: PtgElfColSV -> PtgExtraElf */
          throw "Unsupported " + rgce[i][0];
        default: break;
      }
    }
    length = target - blob.l;
    /* note: this is technically an error but Excel disregards */
    //if(target !== blob.l && blob.l !== target - length) throw new Error(target + " != " + blob.l);
    if(length !== 0) o.push(parsenoop(blob, length));
    return o;
  }

  /* [MS-XLS] 2.5.198.104 ; [MS-XLSB] 2.5.97.88 */
  function parse_Rgce(blob, length, opts) {
    var target = blob.l + length;
    var R, id, ptgs = [];
    while(target != blob.l) {
      length = target - blob.l;
      id = blob[blob.l];
      R = PtgTypes[id];
      if(id === 0x18 || id === 0x19) R = (id === 0x18 ? Ptg18 : Ptg19)[blob[blob.l + 1]];
      if(!R || !R.f) { /*ptgs.push*/(parsenoop(blob, length)); }
      else { ptgs.push([R.n, R.f(blob, length, opts)]); }
    }
    return ptgs;
  }

  function stringify_array(f) {
    var o = [];
    for(var i = 0; i < f.length; ++i) {
      var x = f[i], r = [];
      for(var j = 0; j < x.length; ++j) {
        var y = x[j];
        if(y) switch(y[0]) {
          // TODO: handle embedded quotes
          case 0x02:
            r.push('"' + y[1].replace(/"/g,'""') + '"'); break;
          default: r.push(y[1]);
        } else r.push("");
      }
      o.push(r.join(","));
    }
    return o.join(";");
  }

  /* [MS-XLS] 2.2.2 ; [MS-XLSB] 2.2.2 TODO */
  var PtgBinOp = {
    PtgAdd: "+",
    PtgConcat: "&",
    PtgDiv: "/",
    PtgEq: "=",
    PtgGe: ">=",
    PtgGt: ">",
    PtgLe: "<=",
    PtgLt: "<",
    PtgMul: "*",
    PtgNe: "<>",
    PtgPower: "^",
    PtgSub: "-"
  };
  function formula_quote_sheet_name(sname, opts) {
    if(!sname && !(opts && opts.biff <= 5 && opts.biff >= 2)) throw new Error("empty sheet name");
    if(sname.indexOf(" ") > -1) return "'" + sname + "'";
    return sname;
  }
  function get_ixti_raw(supbooks, ixti, opts) {
    if(!supbooks) return "SH33TJSERR0";
    if(opts.biff > 8 && (!supbooks.XTI || !supbooks.XTI[ixti])) return supbooks.SheetNames[ixti];
    if(!supbooks.XTI) return "SH33TJSERR6";
    var XTI = supbooks.XTI[ixti];
    if(opts.biff < 8) {
      if(ixti > 10000) ixti-= 65536;
      if(ixti < 0) ixti = -ixti;
      return ixti == 0 ? "" : supbooks.XTI[ixti - 1];
    }
    if(!XTI) return "SH33TJSERR1";
    var o = "";
    if(opts.biff > 8) switch(supbooks[XTI[0]][0]) {
      case 0x0165: /* 'BrtSupSelf' */
        o = XTI[1] == -1 ? "#REF" : supbooks.SheetNames[XTI[1]];
        return XTI[1] == XTI[2] ? o : o + ":" + supbooks.SheetNames[XTI[2]];
      case 0x0166: /* 'BrtSupSame' */
        if(opts.SID != null) return supbooks.SheetNames[opts.SID];
        return "SH33TJSSAME" + supbooks[XTI[0]][0];
      case 0x0163: /* 'BrtSupBookSrc' */
      /* falls through */
      default: return "SH33TJSSRC" + supbooks[XTI[0]][0];
    }
    switch(supbooks[XTI[0]][0][0]) {
      case 0x0401:
        o = XTI[1] == -1 ? "#REF" : (supbooks.SheetNames[XTI[1]] || "SH33TJSERR3");
        return XTI[1] == XTI[2] ? o : o + ":" + supbooks.SheetNames[XTI[2]];
      case 0x3A01: return "SH33TJSERR8";
      default:
        if(!supbooks[XTI[0]][0][3]) return "SH33TJSERR2";
        o = XTI[1] == -1 ? "#REF" : (supbooks[XTI[0]][0][3][XTI[1]] || "SH33TJSERR4");
        return XTI[1] == XTI[2] ? o : o + ":" + supbooks[XTI[0]][0][3][XTI[2]];
    }
  }
  function get_ixti(supbooks, ixti, opts) {
    return formula_quote_sheet_name(get_ixti_raw(supbooks, ixti, opts), opts);
  }
  function stringify_formula(formula/*Array<any>*/, range, cell, supbooks, opts) {
    var biff = (opts && opts.biff) || 8;
    var _range = /*range != null ? range :*/ {s:{c:0, r:0},e:{c:0, r:0}};
    var stack = [], e1, e2,  c, ixti=0, nameidx=0, r, sname="";
    if(!formula[0] || !formula[0][0]) return "";
    var last_sp = -1, sp = "";
    for(var ff = 0, fflen = formula[0].length; ff < fflen; ++ff) {
      var f = formula[0][ff];
      switch(f[0]) {
        case 'PtgUminus': /* [MS-XLS] 2.5.198.93 */
          stack.push("-" + stack.pop()); break;
        case 'PtgUplus': /* [MS-XLS] 2.5.198.95 */
          stack.push("+" + stack.pop()); break;
        case 'PtgPercent': /* [MS-XLS] 2.5.198.81 */
          stack.push(stack.pop() + "%"); break;

        case 'PtgAdd':    /* [MS-XLS] 2.5.198.26 */
        case 'PtgConcat': /* [MS-XLS] 2.5.198.43 */
        case 'PtgDiv':    /* [MS-XLS] 2.5.198.45 */
        case 'PtgEq':     /* [MS-XLS] 2.5.198.56 */
        case 'PtgGe':     /* [MS-XLS] 2.5.198.64 */
        case 'PtgGt':     /* [MS-XLS] 2.5.198.65 */
        case 'PtgLe':     /* [MS-XLS] 2.5.198.68 */
        case 'PtgLt':     /* [MS-XLS] 2.5.198.69 */
        case 'PtgMul':    /* [MS-XLS] 2.5.198.75 */
        case 'PtgNe':     /* [MS-XLS] 2.5.198.78 */
        case 'PtgPower':  /* [MS-XLS] 2.5.198.82 */
        case 'PtgSub':    /* [MS-XLS] 2.5.198.90 */
          e1 = stack.pop(); e2 = stack.pop();
          if(last_sp >= 0) {
            switch(formula[0][last_sp][1][0]) {
              case 0:
                // $FlowIgnore
                sp = fill(" ", formula[0][last_sp][1][1]); break;
              case 1:
                // $FlowIgnore
                sp = fill("\r", formula[0][last_sp][1][1]); break;
              default:
                sp = "";
                // $FlowIgnore
                if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + formula[0][last_sp][1][0]);
            }
            e2 = e2 + sp;
            last_sp = -1;
          }
          stack.push(e2+PtgBinOp[f[0]]+e1);
          break;

        case 'PtgIsect': /* [MS-XLS] 2.5.198.67 */
          e1 = stack.pop(); e2 = stack.pop();
          stack.push(e2+" "+e1);
          break;
        case 'PtgUnion': /* [MS-XLS] 2.5.198.94 */
          e1 = stack.pop(); e2 = stack.pop();
          stack.push(e2+","+e1);
          break;
        case 'PtgRange': /* [MS-XLS] 2.5.198.83 */
          e1 = stack.pop(); e2 = stack.pop();
          stack.push(e2+":"+e1);
          break;

        case 'PtgAttrChoose': /* [MS-XLS] 2.5.198.34 */
          break;
        case 'PtgAttrGoto': /* [MS-XLS] 2.5.198.35 */
          break;
        case 'PtgAttrIf': /* [MS-XLS] 2.5.198.36 */
          break;
        case 'PtgAttrIfError': /* [MS-XLSB] 2.5.97.28 */
          break;


        case 'PtgRef': /* [MS-XLS] 2.5.198.84 */
          c = shift_cell_xls((f[1][1]), _range, opts);
          stack.push(encode_cell_xls(c, biff));
          break;
        case 'PtgRefN': /* [MS-XLS] 2.5.198.88 */
          c = cell ? shift_cell_xls((f[1][1]), cell, opts) : (f[1][1]);
          stack.push(encode_cell_xls(c, biff));
          break;
        case 'PtgRef3d': /* [MS-XLS] 2.5.198.85 */
          ixti = f[1][1]; c = shift_cell_xls((f[1][2]), _range, opts);
          sname = get_ixti(supbooks, ixti, opts);
          var w = sname; /* IE9 fails on defined names */ // eslint-disable-line no-unused-vars
          stack.push(sname + "!" + encode_cell_xls(c, biff));
          break;

        case 'PtgFunc': /* [MS-XLS] 2.5.198.62 */
        case 'PtgFuncVar': /* [MS-XLS] 2.5.198.63 */
          /* f[1] = [argc, func, type] */
          var argc = (f[1][0]), func = (f[1][1]);
          if(!argc) argc = 0;
          argc &= 0x7F;
          var args = argc == 0 ? [] : stack.slice(-argc);
          stack.length -= argc;
          if(func === 'User') func = args.shift();
          stack.push(func + "(" + args.join(",") + ")");
          break;

        case 'PtgBool': /* [MS-XLS] 2.5.198.42 */
          stack.push(f[1] ? "TRUE" : "FALSE"); break;
        case 'PtgInt': /* [MS-XLS] 2.5.198.66 */
          stack.push(f[1]); break;
        case 'PtgNum': /* [MS-XLS] 2.5.198.79 TODO: precision? */
          stack.push(String(f[1])); break;
        case 'PtgStr': /* [MS-XLS] 2.5.198.89 */
          // $FlowIgnore
          stack.push('"' + f[1] + '"'); break;
        case 'PtgErr': /* [MS-XLS] 2.5.198.57 */
          stack.push(f[1]); break;
        case 'PtgAreaN': /* [MS-XLS] 2.5.198.31 TODO */
          r = shift_range_xls(f[1][1], cell ? {s:cell} : _range, opts);
          stack.push(encode_range_xls((r), opts));
          break;
        case 'PtgArea': /* [MS-XLS] 2.5.198.27 TODO: fixed points */
          r = shift_range_xls(f[1][1], _range, opts);
          stack.push(encode_range_xls((r), opts));
          break;
        case 'PtgArea3d': /* [MS-XLS] 2.5.198.28 TODO */
          ixti = f[1][1]; r = f[1][2];
          sname = get_ixti(supbooks, ixti, opts);
          stack.push(sname + "!" + encode_range_xls((r), opts));
          break;
        case 'PtgAttrSum': /* [MS-XLS] 2.5.198.41 */
          stack.push("SUM(" + stack.pop() + ")");
          break;

        case 'PtgAttrBaxcel': /* [MS-XLS] 2.5.198.33 */
        case 'PtgAttrSemi': /* [MS-XLS] 2.5.198.37 */
          break;

        case 'PtgName': /* [MS-XLS] 2.5.198.76 ; [MS-XLSB] 2.5.97.60 TODO: revisions */
          /* f[1] = type, 0, nameindex */
          nameidx = (f[1][2]);
          var lbl = (supbooks.names||[])[nameidx-1] || (supbooks[0]||[])[nameidx];
          var name = lbl ? lbl.Name : "SH33TJSNAME" + String(nameidx);
          if(name in XLSXFutureFunctions) name = XLSXFutureFunctions[name];
          stack.push(name);
          break;

        case 'PtgNameX': /* [MS-XLS] 2.5.198.77 ; [MS-XLSB] 2.5.97.61 TODO: revisions */
          /* f[1] = type, ixti, nameindex */
          var bookidx = (f[1][1]); nameidx = (f[1][2]); var externbook;
          /* TODO: Properly handle missing values */
          if(opts.biff <= 5) {
            if(bookidx < 0) bookidx = -bookidx;
            if(supbooks[bookidx]) externbook = supbooks[bookidx][nameidx];
          } else {
            var o = "";
            if(((supbooks[bookidx]||[])[0]||[])[0] == 0x3A01){/* empty */}
            else if(((supbooks[bookidx]||[])[0]||[])[0] == 0x0401){
              if(supbooks[bookidx][nameidx] && supbooks[bookidx][nameidx].itab > 0) {
                o = supbooks.SheetNames[supbooks[bookidx][nameidx].itab-1] + "!";
              }
            }
            else o = supbooks.SheetNames[nameidx-1]+ "!";
            if(supbooks[bookidx] && supbooks[bookidx][nameidx]) o += supbooks[bookidx][nameidx].Name;
            else if(supbooks[0] && supbooks[0][nameidx]) o += supbooks[0][nameidx].Name;
            else o += "SH33TJSERRX";
            stack.push(o);
            break;
          }
          if(!externbook) externbook = {Name: "SH33TJSERRY"};
          stack.push(externbook.Name);
          break;

        case 'PtgParen': /* [MS-XLS] 2.5.198.80 */
          var lp = '(', rp = ')';
          if(last_sp >= 0) {
            sp = "";
            switch(formula[0][last_sp][1][0]) {
              // $FlowIgnore
              case 2: lp = fill(" ", formula[0][last_sp][1][1]) + lp; break;
              // $FlowIgnore
              case 3: lp = fill("\r", formula[0][last_sp][1][1]) + lp; break;
              // $FlowIgnore
              case 4: rp = fill(" ", formula[0][last_sp][1][1]) + rp; break;
              // $FlowIgnore
              case 5: rp = fill("\r", formula[0][last_sp][1][1]) + rp; break;
              default:
                // $FlowIgnore
                if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + formula[0][last_sp][1][0]);
            }
            last_sp = -1;
          }
          stack.push(lp + stack.pop() + rp); break;

        case 'PtgRefErr': /* [MS-XLS] 2.5.198.86 */
          stack.push('#REF!'); break;

        case 'PtgRefErr3d': /* [MS-XLS] 2.5.198.87 */
          stack.push('#REF!'); break;

        case 'PtgExp': /* [MS-XLS] 2.5.198.58 TODO */
          c = {c:(f[1][1]),r:(f[1][0])};
          var q = ({c: cell.c, r:cell.r});
          if(supbooks.sharedf[encode_cell(c)]) {
            var parsedf = (supbooks.sharedf[encode_cell(c)]);
            stack.push(stringify_formula(parsedf, _range, q, supbooks, opts));
          }
          else {
            var fnd = false;
            for(e1=0;e1!=supbooks.arrayf.length; ++e1) {
              /* TODO: should be something like range_has */
              e2 = supbooks.arrayf[e1];
              if(c.c < e2[0].s.c || c.c > e2[0].e.c) continue;
              if(c.r < e2[0].s.r || c.r > e2[0].e.r) continue;
              stack.push(stringify_formula(e2[1], _range, q, supbooks, opts));
              fnd = true;
              break;
            }
            if(!fnd) stack.push(f[1]);
          }
          break;

        case 'PtgArray': /* [MS-XLS] 2.5.198.32 TODO */
          stack.push("{" + stringify_array(f[1]) + "}");
          break;

        case 'PtgMemArea': /* [MS-XLS] 2.5.198.70 TODO: confirm this is a non-display */
          //stack.push("(" + f[2].map(encode_range).join(",") + ")");
          break;

        case 'PtgAttrSpace': /* [MS-XLS] 2.5.198.38 */
        case 'PtgAttrSpaceSemi': /* [MS-XLS] 2.5.198.39 */
          last_sp = ff;
          break;

        case 'PtgTbl': /* [MS-XLS] 2.5.198.92 TODO */
          break;

        case 'PtgMemErr': /* [MS-XLS] 2.5.198.71 */
          break;

        case 'PtgMissArg': /* [MS-XLS] 2.5.198.74 */
          stack.push("");
          break;

        case 'PtgAreaErr': /* [MS-XLS] 2.5.198.29 */
          stack.push("#REF!"); break;

        case 'PtgAreaErr3d': /* [MS-XLS] 2.5.198.30 */
          stack.push("#REF!"); break;

        case 'PtgList': /* [MS-XLSB] 2.5.97.52 */
          // $FlowIgnore
          stack.push("Table" + f[1].idx + "[#" + f[1].rt + "]");
          break;

        case 'PtgMemAreaN':
        case 'PtgMemNoMemN':
        case 'PtgAttrNoop':
        case 'PtgSheet':
        case 'PtgEndSheet':
          break;

        case 'PtgMemFunc': /* [MS-XLS] 2.5.198.72 TODO */
          break;
        case 'PtgMemNoMem': /* [MS-XLS] 2.5.198.73 TODO */
          break;

        case 'PtgElfCol': /* [MS-XLS] 2.5.198.46 */
        case 'PtgElfColS': /* [MS-XLS] 2.5.198.47 */
        case 'PtgElfColSV': /* [MS-XLS] 2.5.198.48 */
        case 'PtgElfColV': /* [MS-XLS] 2.5.198.49 */
        case 'PtgElfLel': /* [MS-XLS] 2.5.198.50 */
        case 'PtgElfRadical': /* [MS-XLS] 2.5.198.51 */
        case 'PtgElfRadicalLel': /* [MS-XLS] 2.5.198.52 */
        case 'PtgElfRadicalS': /* [MS-XLS] 2.5.198.53 */
        case 'PtgElfRw': /* [MS-XLS] 2.5.198.54 */
        case 'PtgElfRwV': /* [MS-XLS] 2.5.198.55 */
          throw new Error("Unsupported ELFs");

        case 'PtgSxName': /* [MS-XLS] 2.5.198.91 TODO -- find a test case */
          throw new Error('Unrecognized Formula Token: ' + String(f));
        default: throw new Error('Unrecognized Formula Token: ' + String(f));
      }
      var PtgNonDisp = ['PtgAttrSpace', 'PtgAttrSpaceSemi', 'PtgAttrGoto'];
      if(opts.biff != 3) if(last_sp >= 0 && PtgNonDisp.indexOf(formula[0][ff][0]) == -1) {
        f = formula[0][last_sp];
        var _left = true;
        switch(f[1][0]) {
          /* note: some bad XLSB files omit the PtgParen */
          case 4: _left = false;
          /* falls through */
          case 0:
            // $FlowIgnore
            sp = fill(" ", f[1][1]); break;
          case 5: _left = false;
          /* falls through */
          case 1:
            // $FlowIgnore
            sp = fill("\r", f[1][1]); break;
          default:
            sp = "";
            // $FlowIgnore
            if(opts.WTF) throw new Error("Unexpected PtgAttrSpaceType " + f[1][0]);
        }
        stack.push((_left ? sp : "") + stack.pop() + (_left ? "" : sp));
        last_sp = -1;
      }
    }
    if(stack.length > 1 && opts.WTF) throw new Error("bad formula stack");
    return stack[0];
  }

  /* [MS-XLS] 2.5.198.1 TODO */
  function parse_ArrayParsedFormula(blob, length, opts) {
    var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
    var rgcb, cce = blob.read_shift(len); // length of rgce
    if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
    var rgce = parse_Rgce(blob, cce, opts);
    if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
    blob.l = target;
    return [rgce, rgcb];
  }

  /* [MS-XLS] 2.5.198.3 TODO */
  function parse_XLSCellParsedFormula(blob, length, opts) {
    var target = blob.l + length, len = opts.biff == 2 ? 1 : 2;
    var rgcb, cce = blob.read_shift(len); // length of rgce
    if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
    var rgce = parse_Rgce(blob, cce, opts);
    if(length !== cce + len) rgcb = parse_RgbExtra(blob, length - cce - len, rgce, opts);
    blob.l = target;
    return [rgce, rgcb];
  }

  /* [MS-XLS] 2.5.198.21 */
  function parse_NameParsedFormula(blob, length, opts, cce) {
    var target = blob.l + length;
    var rgce = parse_Rgce(blob, cce, opts);
    var rgcb;
    if(target !== blob.l) rgcb = parse_RgbExtra(blob, target - blob.l, rgce, opts);
    return [rgce, rgcb];
  }

  /* [MS-XLS] 2.5.198.118 TODO */
  function parse_SharedParsedFormula(blob, length, opts) {
    var target = blob.l + length;
    var rgcb, cce = blob.read_shift(2); // length of rgce
    var rgce = parse_Rgce(blob, cce, opts);
    if(cce == 0xFFFF) return [[],parsenoop(blob, length-2)];
    if(length !== cce + 2) rgcb = parse_RgbExtra(blob, target - cce - 2, rgce, opts);
    return [rgce, rgcb];
  }

  /* [MS-XLS] 2.5.133 TODO: how to emit empty strings? */
  function parse_FormulaValue(blob) {
    var b;
    if(__readUInt16LE(blob,blob.l + 6) !== 0xFFFF) return [parse_Xnum(blob),'n'];
    switch(blob[blob.l]) {
      case 0x00: blob.l += 8; return ["String", 's'];
      case 0x01: b = blob[blob.l+2] === 0x1; blob.l += 8; return [b,'b'];
      case 0x02: b = blob[blob.l+2]; blob.l += 8; return [b,'e'];
      case 0x03: blob.l += 8; return ["",'s'];
    }
    return [];
  }

  /* [MS-XLS] 2.4.127 TODO */
  function parse_Formula(blob, length, opts) {
    var end = blob.l + length;
    var cell = parse_XLSCell(blob, 6);
    if(opts.biff == 2) ++blob.l;
    var val = parse_FormulaValue(blob,8);
    var flags = blob.read_shift(1);
    if(opts.biff != 2) {
      blob.read_shift(1);
      if(opts.biff >= 5) {
        /*var chn = */blob.read_shift(4);
      }
    }
    var cbf = parse_XLSCellParsedFormula(blob, end - blob.l, opts);
    return {cell:cell, val:val[0], formula:cbf, shared: (flags >> 3) & 1, tt:val[1]};
  }

  /* XLSB Parsed Formula records have the same shape */
  function parse_XLSBParsedFormula(data, length, opts) {
    var cce = data.read_shift(4);
    var rgce = parse_Rgce(data, cce, opts);
    var cb = data.read_shift(4);
    var rgcb = cb > 0 ? parse_RgbExtra(data, cb, rgce, opts) : null;
    return [rgce, rgcb];
  }

  /* [MS-XLSB] 2.5.97.1 ArrayParsedFormula */
  var parse_XLSBArrayParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.4 CellParsedFormula */
  var parse_XLSBCellParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.12 NameParsedFormula */
  var parse_XLSBNameParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLSB] 2.5.97.98 SharedParsedFormula */
  var parse_XLSBSharedParsedFormula = parse_XLSBParsedFormula;
  /* [MS-XLS] 2.5.198.4 */
  var Cetab = {
    0x0000: 'BEEP',
    0x0001: 'OPEN',
    0x0002: 'OPEN.LINKS',
    0x0003: 'CLOSE.ALL',
    0x0004: 'SAVE',
    0x0005: 'SAVE.AS',
    0x0006: 'FILE.DELETE',
    0x0007: 'PAGE.SETUP',
    0x0008: 'PRINT',
    0x0009: 'PRINTER.SETUP',
    0x000A: 'QUIT',
    0x000B: 'NEW.WINDOW',
    0x000C: 'ARRANGE.ALL',
    0x000D: 'WINDOW.SIZE',
    0x000E: 'WINDOW.MOVE',
    0x000F: 'FULL',
    0x0010: 'CLOSE',
    0x0011: 'RUN',
    0x0016: 'SET.PRINT.AREA',
    0x0017: 'SET.PRINT.TITLES',
    0x0018: 'SET.PAGE.BREAK',
    0x0019: 'REMOVE.PAGE.BREAK',
    0x001A: 'FONT',
    0x001B: 'DISPLAY',
    0x001C: 'PROTECT.DOCUMENT',
    0x001D: 'PRECISION',
    0x001E: 'A1.R1C1',
    0x001F: 'CALCULATE.NOW',
    0x0020: 'CALCULATION',
    0x0022: 'DATA.FIND',
    0x0023: 'EXTRACT',
    0x0024: 'DATA.DELETE',
    0x0025: 'SET.DATABASE',
    0x0026: 'SET.CRITERIA',
    0x0027: 'SORT',
    0x0028: 'DATA.SERIES',
    0x0029: 'TABLE',
    0x002A: 'FORMAT.NUMBER',
    0x002B: 'ALIGNMENT',
    0x002C: 'STYLE',
    0x002D: 'BORDER',
    0x002E: 'CELL.PROTECTION',
    0x002F: 'COLUMN.WIDTH',
    0x0030: 'UNDO',
    0x0031: 'CUT',
    0x0032: 'COPY',
    0x0033: 'PASTE',
    0x0034: 'CLEAR',
    0x0035: 'PASTE.SPECIAL',
    0x0036: 'EDIT.DELETE',
    0x0037: 'INSERT',
    0x0038: 'FILL.RIGHT',
    0x0039: 'FILL.DOWN',
    0x003D: 'DEFINE.NAME',
    0x003E: 'CREATE.NAMES',
    0x003F: 'FORMULA.GOTO',
    0x0040: 'FORMULA.FIND',
    0x0041: 'SELECT.LAST.CELL',
    0x0042: 'SHOW.ACTIVE.CELL',
    0x0043: 'GALLERY.AREA',
    0x0044: 'GALLERY.BAR',
    0x0045: 'GALLERY.COLUMN',
    0x0046: 'GALLERY.LINE',
    0x0047: 'GALLERY.PIE',
    0x0048: 'GALLERY.SCATTER',
    0x0049: 'COMBINATION',
    0x004A: 'PREFERRED',
    0x004B: 'ADD.OVERLAY',
    0x004C: 'GRIDLINES',
    0x004D: 'SET.PREFERRED',
    0x004E: 'AXES',
    0x004F: 'LEGEND',
    0x0050: 'ATTACH.TEXT',
    0x0051: 'ADD.ARROW',
    0x0052: 'SELECT.CHART',
    0x0053: 'SELECT.PLOT.AREA',
    0x0054: 'PATTERNS',
    0x0055: 'MAIN.CHART',
    0x0056: 'OVERLAY',
    0x0057: 'SCALE',
    0x0058: 'FORMAT.LEGEND',
    0x0059: 'FORMAT.TEXT',
    0x005A: 'EDIT.REPEAT',
    0x005B: 'PARSE',
    0x005C: 'JUSTIFY',
    0x005D: 'HIDE',
    0x005E: 'UNHIDE',
    0x005F: 'WORKSPACE',
    0x0060: 'FORMULA',
    0x0061: 'FORMULA.FILL',
    0x0062: 'FORMULA.ARRAY',
    0x0063: 'DATA.FIND.NEXT',
    0x0064: 'DATA.FIND.PREV',
    0x0065: 'FORMULA.FIND.NEXT',
    0x0066: 'FORMULA.FIND.PREV',
    0x0067: 'ACTIVATE',
    0x0068: 'ACTIVATE.NEXT',
    0x0069: 'ACTIVATE.PREV',
    0x006A: 'UNLOCKED.NEXT',
    0x006B: 'UNLOCKED.PREV',
    0x006C: 'COPY.PICTURE',
    0x006D: 'SELECT',
    0x006E: 'DELETE.NAME',
    0x006F: 'DELETE.FORMAT',
    0x0070: 'VLINE',
    0x0071: 'HLINE',
    0x0072: 'VPAGE',
    0x0073: 'HPAGE',
    0x0074: 'VSCROLL',
    0x0075: 'HSCROLL',
    0x0076: 'ALERT',
    0x0077: 'NEW',
    0x0078: 'CANCEL.COPY',
    0x0079: 'SHOW.CLIPBOARD',
    0x007A: 'MESSAGE',
    0x007C: 'PASTE.LINK',
    0x007D: 'APP.ACTIVATE',
    0x007E: 'DELETE.ARROW',
    0x007F: 'ROW.HEIGHT',
    0x0080: 'FORMAT.MOVE',
    0x0081: 'FORMAT.SIZE',
    0x0082: 'FORMULA.REPLACE',
    0x0083: 'SEND.KEYS',
    0x0084: 'SELECT.SPECIAL',
    0x0085: 'APPLY.NAMES',
    0x0086: 'REPLACE.FONT',
    0x0087: 'FREEZE.PANES',
    0x0088: 'SHOW.INFO',
    0x0089: 'SPLIT',
    0x008A: 'ON.WINDOW',
    0x008B: 'ON.DATA',
    0x008C: 'DISABLE.INPUT',
    0x008E: 'OUTLINE',
    0x008F: 'LIST.NAMES',
    0x0090: 'FILE.CLOSE',
    0x0091: 'SAVE.WORKBOOK',
    0x0092: 'DATA.FORM',
    0x0093: 'COPY.CHART',
    0x0094: 'ON.TIME',
    0x0095: 'WAIT',
    0x0096: 'FORMAT.FONT',
    0x0097: 'FILL.UP',
    0x0098: 'FILL.LEFT',
    0x0099: 'DELETE.OVERLAY',
    0x009B: 'SHORT.MENUS',
    0x009F: 'SET.UPDATE.STATUS',
    0x00A1: 'COLOR.PALETTE',
    0x00A2: 'DELETE.STYLE',
    0x00A3: 'WINDOW.RESTORE',
    0x00A4: 'WINDOW.MAXIMIZE',
    0x00A6: 'CHANGE.LINK',
    0x00A7: 'CALCULATE.DOCUMENT',
    0x00A8: 'ON.KEY',
    0x00A9: 'APP.RESTORE',
    0x00AA: 'APP.MOVE',
    0x00AB: 'APP.SIZE',
    0x00AC: 'APP.MINIMIZE',
    0x00AD: 'APP.MAXIMIZE',
    0x00AE: 'BRING.TO.FRONT',
    0x00AF: 'SEND.TO.BACK',
    0x00B9: 'MAIN.CHART.TYPE',
    0x00BA: 'OVERLAY.CHART.TYPE',
    0x00BB: 'SELECT.END',
    0x00BC: 'OPEN.MAIL',
    0x00BD: 'SEND.MAIL',
    0x00BE: 'STANDARD.FONT',
    0x00BF: 'CONSOLIDATE',
    0x00C0: 'SORT.SPECIAL',
    0x00C1: 'GALLERY.3D.AREA',
    0x00C2: 'GALLERY.3D.COLUMN',
    0x00C3: 'GALLERY.3D.LINE',
    0x00C4: 'GALLERY.3D.PIE',
    0x00C5: 'VIEW.3D',
    0x00C6: 'GOAL.SEEK',
    0x00C7: 'WORKGROUP',
    0x00C8: 'FILL.GROUP',
    0x00C9: 'UPDATE.LINK',
    0x00CA: 'PROMOTE',
    0x00CB: 'DEMOTE',
    0x00CC: 'SHOW.DETAIL',
    0x00CE: 'UNGROUP',
    0x00CF: 'OBJECT.PROPERTIES',
    0x00D0: 'SAVE.NEW.OBJECT',
    0x00D1: 'SHARE',
    0x00D2: 'SHARE.NAME',
    0x00D3: 'DUPLICATE',
    0x00D4: 'APPLY.STYLE',
    0x00D5: 'ASSIGN.TO.OBJECT',
    0x00D6: 'OBJECT.PROTECTION',
    0x00D7: 'HIDE.OBJECT',
    0x00D8: 'SET.EXTRACT',
    0x00D9: 'CREATE.PUBLISHER',
    0x00DA: 'SUBSCRIBE.TO',
    0x00DB: 'ATTRIBUTES',
    0x00DC: 'SHOW.TOOLBAR',
    0x00DE: 'PRINT.PREVIEW',
    0x00DF: 'EDIT.COLOR',
    0x00E0: 'SHOW.LEVELS',
    0x00E1: 'FORMAT.MAIN',
    0x00E2: 'FORMAT.OVERLAY',
    0x00E3: 'ON.RECALC',
    0x00E4: 'EDIT.SERIES',
    0x00E5: 'DEFINE.STYLE',
    0x00F0: 'LINE.PRINT',
    0x00F3: 'ENTER.DATA',
    0x00F9: 'GALLERY.RADAR',
    0x00FA: 'MERGE.STYLES',
    0x00FB: 'EDITION.OPTIONS',
    0x00FC: 'PASTE.PICTURE',
    0x00FD: 'PASTE.PICTURE.LINK',
    0x00FE: 'SPELLING',
    0x0100: 'ZOOM',
    0x0103: 'INSERT.OBJECT',
    0x0104: 'WINDOW.MINIMIZE',
    0x0109: 'SOUND.NOTE',
    0x010A: 'SOUND.PLAY',
    0x010B: 'FORMAT.SHAPE',
    0x010C: 'EXTEND.POLYGON',
    0x010D: 'FORMAT.AUTO',
    0x0110: 'GALLERY.3D.BAR',
    0x0111: 'GALLERY.3D.SURFACE',
    0x0112: 'FILL.AUTO',
    0x0114: 'CUSTOMIZE.TOOLBAR',
    0x0115: 'ADD.TOOL',
    0x0116: 'EDIT.OBJECT',
    0x0117: 'ON.DOUBLECLICK',
    0x0118: 'ON.ENTRY',
    0x0119: 'WORKBOOK.ADD',
    0x011A: 'WORKBOOK.MOVE',
    0x011B: 'WORKBOOK.COPY',
    0x011C: 'WORKBOOK.OPTIONS',
    0x011D: 'SAVE.WORKSPACE',
    0x0120: 'CHART.WIZARD',
    0x0121: 'DELETE.TOOL',
    0x0122: 'MOVE.TOOL',
    0x0123: 'WORKBOOK.SELECT',
    0x0124: 'WORKBOOK.ACTIVATE',
    0x0125: 'ASSIGN.TO.TOOL',
    0x0127: 'COPY.TOOL',
    0x0128: 'RESET.TOOL',
    0x0129: 'CONSTRAIN.NUMERIC',
    0x012A: 'PASTE.TOOL',
    0x012E: 'WORKBOOK.NEW',
    0x0131: 'SCENARIO.CELLS',
    0x0132: 'SCENARIO.DELETE',
    0x0133: 'SCENARIO.ADD',
    0x0134: 'SCENARIO.EDIT',
    0x0135: 'SCENARIO.SHOW',
    0x0136: 'SCENARIO.SHOW.NEXT',
    0x0137: 'SCENARIO.SUMMARY',
    0x0138: 'PIVOT.TABLE.WIZARD',
    0x0139: 'PIVOT.FIELD.PROPERTIES',
    0x013A: 'PIVOT.FIELD',
    0x013B: 'PIVOT.ITEM',
    0x013C: 'PIVOT.ADD.FIELDS',
    0x013E: 'OPTIONS.CALCULATION',
    0x013F: 'OPTIONS.EDIT',
    0x0140: 'OPTIONS.VIEW',
    0x0141: 'ADDIN.MANAGER',
    0x0142: 'MENU.EDITOR',
    0x0143: 'ATTACH.TOOLBARS',
    0x0144: 'VBAActivate',
    0x0145: 'OPTIONS.CHART',
    0x0148: 'VBA.INSERT.FILE',
    0x014A: 'VBA.PROCEDURE.DEFINITION',
    0x0150: 'ROUTING.SLIP',
    0x0152: 'ROUTE.DOCUMENT',
    0x0153: 'MAIL.LOGON',
    0x0156: 'INSERT.PICTURE',
    0x0157: 'EDIT.TOOL',
    0x0158: 'GALLERY.DOUGHNUT',
    0x015E: 'CHART.TREND',
    0x0160: 'PIVOT.ITEM.PROPERTIES',
    0x0162: 'WORKBOOK.INSERT',
    0x0163: 'OPTIONS.TRANSITION',
    0x0164: 'OPTIONS.GENERAL',
    0x0172: 'FILTER.ADVANCED',
    0x0175: 'MAIL.ADD.MAILER',
    0x0176: 'MAIL.DELETE.MAILER',
    0x0177: 'MAIL.REPLY',
    0x0178: 'MAIL.REPLY.ALL',
    0x0179: 'MAIL.FORWARD',
    0x017A: 'MAIL.NEXT.LETTER',
    0x017B: 'DATA.LABEL',
    0x017C: 'INSERT.TITLE',
    0x017D: 'FONT.PROPERTIES',
    0x017E: 'MACRO.OPTIONS',
    0x017F: 'WORKBOOK.HIDE',
    0x0180: 'WORKBOOK.UNHIDE',
    0x0181: 'WORKBOOK.DELETE',
    0x0182: 'WORKBOOK.NAME',
    0x0184: 'GALLERY.CUSTOM',
    0x0186: 'ADD.CHART.AUTOFORMAT',
    0x0187: 'DELETE.CHART.AUTOFORMAT',
    0x0188: 'CHART.ADD.DATA',
    0x0189: 'AUTO.OUTLINE',
    0x018A: 'TAB.ORDER',
    0x018B: 'SHOW.DIALOG',
    0x018C: 'SELECT.ALL',
    0x018D: 'UNGROUP.SHEETS',
    0x018E: 'SUBTOTAL.CREATE',
    0x018F: 'SUBTOTAL.REMOVE',
    0x0190: 'RENAME.OBJECT',
    0x019C: 'WORKBOOK.SCROLL',
    0x019D: 'WORKBOOK.NEXT',
    0x019E: 'WORKBOOK.PREV',
    0x019F: 'WORKBOOK.TAB.SPLIT',
    0x01A0: 'FULL.SCREEN',
    0x01A1: 'WORKBOOK.PROTECT',
    0x01A4: 'SCROLLBAR.PROPERTIES',
    0x01A5: 'PIVOT.SHOW.PAGES',
    0x01A6: 'TEXT.TO.COLUMNS',
    0x01A7: 'FORMAT.CHARTTYPE',
    0x01A8: 'LINK.FORMAT',
    0x01A9: 'TRACER.DISPLAY',
    0x01AE: 'TRACER.NAVIGATE',
    0x01AF: 'TRACER.CLEAR',
    0x01B0: 'TRACER.ERROR',
    0x01B1: 'PIVOT.FIELD.GROUP',
    0x01B2: 'PIVOT.FIELD.UNGROUP',
    0x01B3: 'CHECKBOX.PROPERTIES',
    0x01B4: 'LABEL.PROPERTIES',
    0x01B5: 'LISTBOX.PROPERTIES',
    0x01B6: 'EDITBOX.PROPERTIES',
    0x01B7: 'PIVOT.REFRESH',
    0x01B8: 'LINK.COMBO',
    0x01B9: 'OPEN.TEXT',
    0x01BA: 'HIDE.DIALOG',
    0x01BB: 'SET.DIALOG.FOCUS',
    0x01BC: 'ENABLE.OBJECT',
    0x01BD: 'PUSHBUTTON.PROPERTIES',
    0x01BE: 'SET.DIALOG.DEFAULT',
    0x01BF: 'FILTER',
    0x01C0: 'FILTER.SHOW.ALL',
    0x01C1: 'CLEAR.OUTLINE',
    0x01C2: 'FUNCTION.WIZARD',
    0x01C3: 'ADD.LIST.ITEM',
    0x01C4: 'SET.LIST.ITEM',
    0x01C5: 'REMOVE.LIST.ITEM',
    0x01C6: 'SELECT.LIST.ITEM',
    0x01C7: 'SET.CONTROL.VALUE',
    0x01C8: 'SAVE.COPY.AS',
    0x01CA: 'OPTIONS.LISTS.ADD',
    0x01CB: 'OPTIONS.LISTS.DELETE',
    0x01CC: 'SERIES.AXES',
    0x01CD: 'SERIES.X',
    0x01CE: 'SERIES.Y',
    0x01CF: 'ERRORBAR.X',
    0x01D0: 'ERRORBAR.Y',
    0x01D1: 'FORMAT.CHART',
    0x01D2: 'SERIES.ORDER',
    0x01D3: 'MAIL.LOGOFF',
    0x01D4: 'CLEAR.ROUTING.SLIP',
    0x01D5: 'APP.ACTIVATE.MICROSOFT',
    0x01D6: 'MAIL.EDIT.MAILER',
    0x01D7: 'ON.SHEET',
    0x01D8: 'STANDARD.WIDTH',
    0x01D9: 'SCENARIO.MERGE',
    0x01DA: 'SUMMARY.INFO',
    0x01DB: 'FIND.FILE',
    0x01DC: 'ACTIVE.CELL.FONT',
    0x01DD: 'ENABLE.TIPWIZARD',
    0x01DE: 'VBA.MAKE.ADDIN',
    0x01E0: 'INSERTDATATABLE',
    0x01E1: 'WORKGROUP.OPTIONS',
    0x01E2: 'MAIL.SEND.MAILER',
    0x01E5: 'AUTOCORRECT',
    0x01E9: 'POST.DOCUMENT',
    0x01EB: 'PICKLIST',
    0x01ED: 'VIEW.SHOW',
    0x01EE: 'VIEW.DEFINE',
    0x01EF: 'VIEW.DELETE',
    0x01FD: 'SHEET.BACKGROUND',
    0x01FE: 'INSERT.MAP.OBJECT',
    0x01FF: 'OPTIONS.MENONO',
    0x0205: 'MSOCHECKS',
    0x0206: 'NORMAL',
    0x0207: 'LAYOUT',
    0x0208: 'RM.PRINT.AREA',
    0x0209: 'CLEAR.PRINT.AREA',
    0x020A: 'ADD.PRINT.AREA',
    0x020B: 'MOVE.BRK',
    0x0221: 'HIDECURR.NOTE',
    0x0222: 'HIDEALL.NOTES',
    0x0223: 'DELETE.NOTE',
    0x0224: 'TRAVERSE.NOTES',
    0x0225: 'ACTIVATE.NOTES',
    0x026C: 'PROTECT.REVISIONS',
    0x026D: 'UNPROTECT.REVISIONS',
    0x0287: 'OPTIONS.ME',
    0x028D: 'WEB.PUBLISH',
    0x029B: 'NEWWEBQUERY',
    0x02A1: 'PIVOT.TABLE.CHART',
    0x02F1: 'OPTIONS.SAVE',
    0x02F3: 'OPTIONS.SPELL',
    0x0328: 'HIDEALL.INKANNOTS'
  };

  /* [MS-XLS] 2.5.198.17 */
  /* [MS-XLSB] 2.5.97.10 */
  var Ftab = {
    0x0000: 'COUNT',
    0x0001: 'IF',
    0x0002: 'ISNA',
    0x0003: 'ISERROR',
    0x0004: 'SUM',
    0x0005: 'AVERAGE',
    0x0006: 'MIN',
    0x0007: 'MAX',
    0x0008: 'ROW',
    0x0009: 'COLUMN',
    0x000A: 'NA',
    0x000B: 'NPV',
    0x000C: 'STDEV',
    0x000D: 'DOLLAR',
    0x000E: 'FIXED',
    0x000F: 'SIN',
    0x0010: 'COS',
    0x0011: 'TAN',
    0x0012: 'ATAN',
    0x0013: 'PI',
    0x0014: 'SQRT',
    0x0015: 'EXP',
    0x0016: 'LN',
    0x0017: 'LOG10',
    0x0018: 'ABS',
    0x0019: 'INT',
    0x001A: 'SIGN',
    0x001B: 'ROUND',
    0x001C: 'LOOKUP',
    0x001D: 'INDEX',
    0x001E: 'REPT',
    0x001F: 'MID',
    0x0020: 'LEN',
    0x0021: 'VALUE',
    0x0022: 'TRUE',
    0x0023: 'FALSE',
    0x0024: 'AND',
    0x0025: 'OR',
    0x0026: 'NOT',
    0x0027: 'MOD',
    0x0028: 'DCOUNT',
    0x0029: 'DSUM',
    0x002A: 'DAVERAGE',
    0x002B: 'DMIN',
    0x002C: 'DMAX',
    0x002D: 'DSTDEV',
    0x002E: 'VAR',
    0x002F: 'DVAR',
    0x0030: 'TEXT',
    0x0031: 'LINEST',
    0x0032: 'TREND',
    0x0033: 'LOGEST',
    0x0034: 'GROWTH',
    0x0035: 'GOTO',
    0x0036: 'HALT',
    0x0037: 'RETURN',
    0x0038: 'PV',
    0x0039: 'FV',
    0x003A: 'NPER',
    0x003B: 'PMT',
    0x003C: 'RATE',
    0x003D: 'MIRR',
    0x003E: 'IRR',
    0x003F: 'RAND',
    0x0040: 'MATCH',
    0x0041: 'DATE',
    0x0042: 'TIME',
    0x0043: 'DAY',
    0x0044: 'MONTH',
    0x0045: 'YEAR',
    0x0046: 'WEEKDAY',
    0x0047: 'HOUR',
    0x0048: 'MINUTE',
    0x0049: 'SECOND',
    0x004A: 'NOW',
    0x004B: 'AREAS',
    0x004C: 'ROWS',
    0x004D: 'COLUMNS',
    0x004E: 'OFFSET',
    0x004F: 'ABSREF',
    0x0050: 'RELREF',
    0x0051: 'ARGUMENT',
    0x0052: 'SEARCH',
    0x0053: 'TRANSPOSE',
    0x0054: 'ERROR',
    0x0055: 'STEP',
    0x0056: 'TYPE',
    0x0057: 'ECHO',
    0x0058: 'SET.NAME',
    0x0059: 'CALLER',
    0x005A: 'DEREF',
    0x005B: 'WINDOWS',
    0x005C: 'SERIES',
    0x005D: 'DOCUMENTS',
    0x005E: 'ACTIVE.CELL',
    0x005F: 'SELECTION',
    0x0060: 'RESULT',
    0x0061: 'ATAN2',
    0x0062: 'ASIN',
    0x0063: 'ACOS',
    0x0064: 'CHOOSE',
    0x0065: 'HLOOKUP',
    0x0066: 'VLOOKUP',
    0x0067: 'LINKS',
    0x0068: 'INPUT',
    0x0069: 'ISREF',
    0x006A: 'GET.FORMULA',
    0x006B: 'GET.NAME',
    0x006C: 'SET.VALUE',
    0x006D: 'LOG',
    0x006E: 'EXEC',
    0x006F: 'CHAR',
    0x0070: 'LOWER',
    0x0071: 'UPPER',
    0x0072: 'PROPER',
    0x0073: 'LEFT',
    0x0074: 'RIGHT',
    0x0075: 'EXACT',
    0x0076: 'TRIM',
    0x0077: 'REPLACE',
    0x0078: 'SUBSTITUTE',
    0x0079: 'CODE',
    0x007A: 'NAMES',
    0x007B: 'DIRECTORY',
    0x007C: 'FIND',
    0x007D: 'CELL',
    0x007E: 'ISERR',
    0x007F: 'ISTEXT',
    0x0080: 'ISNUMBER',
    0x0081: 'ISBLANK',
    0x0082: 'T',
    0x0083: 'N',
    0x0084: 'FOPEN',
    0x0085: 'FCLOSE',
    0x0086: 'FSIZE',
    0x0087: 'FREADLN',
    0x0088: 'FREAD',
    0x0089: 'FWRITELN',
    0x008A: 'FWRITE',
    0x008B: 'FPOS',
    0x008C: 'DATEVALUE',
    0x008D: 'TIMEVALUE',
    0x008E: 'SLN',
    0x008F: 'SYD',
    0x0090: 'DDB',
    0x0091: 'GET.DEF',
    0x0092: 'REFTEXT',
    0x0093: 'TEXTREF',
    0x0094: 'INDIRECT',
    0x0095: 'REGISTER',
    0x0096: 'CALL',
    0x0097: 'ADD.BAR',
    0x0098: 'ADD.MENU',
    0x0099: 'ADD.COMMAND',
    0x009A: 'ENABLE.COMMAND',
    0x009B: 'CHECK.COMMAND',
    0x009C: 'RENAME.COMMAND',
    0x009D: 'SHOW.BAR',
    0x009E: 'DELETE.MENU',
    0x009F: 'DELETE.COMMAND',
    0x00A0: 'GET.CHART.ITEM',
    0x00A1: 'DIALOG.BOX',
    0x00A2: 'CLEAN',
    0x00A3: 'MDETERM',
    0x00A4: 'MINVERSE',
    0x00A5: 'MMULT',
    0x00A6: 'FILES',
    0x00A7: 'IPMT',
    0x00A8: 'PPMT',
    0x00A9: 'COUNTA',
    0x00AA: 'CANCEL.KEY',
    0x00AB: 'FOR',
    0x00AC: 'WHILE',
    0x00AD: 'BREAK',
    0x00AE: 'NEXT',
    0x00AF: 'INITIATE',
    0x00B0: 'REQUEST',
    0x00B1: 'POKE',
    0x00B2: 'EXECUTE',
    0x00B3: 'TERMINATE',
    0x00B4: 'RESTART',
    0x00B5: 'HELP',
    0x00B6: 'GET.BAR',
    0x00B7: 'PRODUCT',
    0x00B8: 'FACT',
    0x00B9: 'GET.CELL',
    0x00BA: 'GET.WORKSPACE',
    0x00BB: 'GET.WINDOW',
    0x00BC: 'GET.DOCUMENT',
    0x00BD: 'DPRODUCT',
    0x00BE: 'ISNONTEXT',
    0x00BF: 'GET.NOTE',
    0x00C0: 'NOTE',
    0x00C1: 'STDEVP',
    0x00C2: 'VARP',
    0x00C3: 'DSTDEVP',
    0x00C4: 'DVARP',
    0x00C5: 'TRUNC',
    0x00C6: 'ISLOGICAL',
    0x00C7: 'DCOUNTA',
    0x00C8: 'DELETE.BAR',
    0x00C9: 'UNREGISTER',
    0x00CC: 'USDOLLAR',
    0x00CD: 'FINDB',
    0x00CE: 'SEARCHB',
    0x00CF: 'REPLACEB',
    0x00D0: 'LEFTB',
    0x00D1: 'RIGHTB',
    0x00D2: 'MIDB',
    0x00D3: 'LENB',
    0x00D4: 'ROUNDUP',
    0x00D5: 'ROUNDDOWN',
    0x00D6: 'ASC',
    0x00D7: 'DBCS',
    0x00D8: 'RANK',
    0x00DB: 'ADDRESS',
    0x00DC: 'DAYS360',
    0x00DD: 'TODAY',
    0x00DE: 'VDB',
    0x00DF: 'ELSE',
    0x00E0: 'ELSE.IF',
    0x00E1: 'END.IF',
    0x00E2: 'FOR.CELL',
    0x00E3: 'MEDIAN',
    0x00E4: 'SUMPRODUCT',
    0x00E5: 'SINH',
    0x00E6: 'COSH',
    0x00E7: 'TANH',
    0x00E8: 'ASINH',
    0x00E9: 'ACOSH',
    0x00EA: 'ATANH',
    0x00EB: 'DGET',
    0x00EC: 'CREATE.OBJECT',
    0x00ED: 'VOLATILE',
    0x00EE: 'LAST.ERROR',
    0x00EF: 'CUSTOM.UNDO',
    0x00F0: 'CUSTOM.REPEAT',
    0x00F1: 'FORMULA.CONVERT',
    0x00F2: 'GET.LINK.INFO',
    0x00F3: 'TEXT.BOX',
    0x00F4: 'INFO',
    0x00F5: 'GROUP',
    0x00F6: 'GET.OBJECT',
    0x00F7: 'DB',
    0x00F8: 'PAUSE',
    0x00FB: 'RESUME',
    0x00FC: 'FREQUENCY',
    0x00FD: 'ADD.TOOLBAR',
    0x00FE: 'DELETE.TOOLBAR',
    0x00FF: 'User',
    0x0100: 'RESET.TOOLBAR',
    0x0101: 'EVALUATE',
    0x0102: 'GET.TOOLBAR',
    0x0103: 'GET.TOOL',
    0x0104: 'SPELLING.CHECK',
    0x0105: 'ERROR.TYPE',
    0x0106: 'APP.TITLE',
    0x0107: 'WINDOW.TITLE',
    0x0108: 'SAVE.TOOLBAR',
    0x0109: 'ENABLE.TOOL',
    0x010A: 'PRESS.TOOL',
    0x010B: 'REGISTER.ID',
    0x010C: 'GET.WORKBOOK',
    0x010D: 'AVEDEV',
    0x010E: 'BETADIST',
    0x010F: 'GAMMALN',
    0x0110: 'BETAINV',
    0x0111: 'BINOMDIST',
    0x0112: 'CHIDIST',
    0x0113: 'CHIINV',
    0x0114: 'COMBIN',
    0x0115: 'CONFIDENCE',
    0x0116: 'CRITBINOM',
    0x0117: 'EVEN',
    0x0118: 'EXPONDIST',
    0x0119: 'FDIST',
    0x011A: 'FINV',
    0x011B: 'FISHER',
    0x011C: 'FISHERINV',
    0x011D: 'FLOOR',
    0x011E: 'GAMMADIST',
    0x011F: 'GAMMAINV',
    0x0120: 'CEILING',
    0x0121: 'HYPGEOMDIST',
    0x0122: 'LOGNORMDIST',
    0x0123: 'LOGINV',
    0x0124: 'NEGBINOMDIST',
    0x0125: 'NORMDIST',
    0x0126: 'NORMSDIST',
    0x0127: 'NORMINV',
    0x0128: 'NORMSINV',
    0x0129: 'STANDARDIZE',
    0x012A: 'ODD',
    0x012B: 'PERMUT',
    0x012C: 'POISSON',
    0x012D: 'TDIST',
    0x012E: 'WEIBULL',
    0x012F: 'SUMXMY2',
    0x0130: 'SUMX2MY2',
    0x0131: 'SUMX2PY2',
    0x0132: 'CHITEST',
    0x0133: 'CORREL',
    0x0134: 'COVAR',
    0x0135: 'FORECAST',
    0x0136: 'FTEST',
    0x0137: 'INTERCEPT',
    0x0138: 'PEARSON',
    0x0139: 'RSQ',
    0x013A: 'STEYX',
    0x013B: 'SLOPE',
    0x013C: 'TTEST',
    0x013D: 'PROB',
    0x013E: 'DEVSQ',
    0x013F: 'GEOMEAN',
    0x0140: 'HARMEAN',
    0x0141: 'SUMSQ',
    0x0142: 'KURT',
    0x0143: 'SKEW',
    0x0144: 'ZTEST',
    0x0145: 'LARGE',
    0x0146: 'SMALL',
    0x0147: 'QUARTILE',
    0x0148: 'PERCENTILE',
    0x0149: 'PERCENTRANK',
    0x014A: 'MODE',
    0x014B: 'TRIMMEAN',
    0x014C: 'TINV',
    0x014E: 'MOVIE.COMMAND',
    0x014F: 'GET.MOVIE',
    0x0150: 'CONCATENATE',
    0x0151: 'POWER',
    0x0152: 'PIVOT.ADD.DATA',
    0x0153: 'GET.PIVOT.TABLE',
    0x0154: 'GET.PIVOT.FIELD',
    0x0155: 'GET.PIVOT.ITEM',
    0x0156: 'RADIANS',
    0x0157: 'DEGREES',
    0x0158: 'SUBTOTAL',
    0x0159: 'SUMIF',
    0x015A: 'COUNTIF',
    0x015B: 'COUNTBLANK',
    0x015C: 'SCENARIO.GET',
    0x015D: 'OPTIONS.LISTS.GET',
    0x015E: 'ISPMT',
    0x015F: 'DATEDIF',
    0x0160: 'DATESTRING',
    0x0161: 'NUMBERSTRING',
    0x0162: 'ROMAN',
    0x0163: 'OPEN.DIALOG',
    0x0164: 'SAVE.DIALOG',
    0x0165: 'VIEW.GET',
    0x0166: 'GETPIVOTDATA',
    0x0167: 'HYPERLINK',
    0x0168: 'PHONETIC',
    0x0169: 'AVERAGEA',
    0x016A: 'MAXA',
    0x016B: 'MINA',
    0x016C: 'STDEVPA',
    0x016D: 'VARPA',
    0x016E: 'STDEVA',
    0x016F: 'VARA',
    0x0170: 'BAHTTEXT',
    0x0171: 'THAIDAYOFWEEK',
    0x0172: 'THAIDIGIT',
    0x0173: 'THAIMONTHOFYEAR',
    0x0174: 'THAINUMSOUND',
    0x0175: 'THAINUMSTRING',
    0x0176: 'THAISTRINGLENGTH',
    0x0177: 'ISTHAIDIGIT',
    0x0178: 'ROUNDBAHTDOWN',
    0x0179: 'ROUNDBAHTUP',
    0x017A: 'THAIYEAR',
    0x017B: 'RTD',

    0x017C: 'CUBEVALUE',
    0x017D: 'CUBEMEMBER',
    0x017E: 'CUBEMEMBERPROPERTY',
    0x017F: 'CUBERANKEDMEMBER',
    0x0180: 'HEX2BIN',
    0x0181: 'HEX2DEC',
    0x0182: 'HEX2OCT',
    0x0183: 'DEC2BIN',
    0x0184: 'DEC2HEX',
    0x0185: 'DEC2OCT',
    0x0186: 'OCT2BIN',
    0x0187: 'OCT2HEX',
    0x0188: 'OCT2DEC',
    0x0189: 'BIN2DEC',
    0x018A: 'BIN2OCT',
    0x018B: 'BIN2HEX',
    0x018C: 'IMSUB',
    0x018D: 'IMDIV',
    0x018E: 'IMPOWER',
    0x018F: 'IMABS',
    0x0190: 'IMSQRT',
    0x0191: 'IMLN',
    0x0192: 'IMLOG2',
    0x0193: 'IMLOG10',
    0x0194: 'IMSIN',
    0x0195: 'IMCOS',
    0x0196: 'IMEXP',
    0x0197: 'IMARGUMENT',
    0x0198: 'IMCONJUGATE',
    0x0199: 'IMAGINARY',
    0x019A: 'IMREAL',
    0x019B: 'COMPLEX',
    0x019C: 'IMSUM',
    0x019D: 'IMPRODUCT',
    0x019E: 'SERIESSUM',
    0x019F: 'FACTDOUBLE',
    0x01A0: 'SQRTPI',
    0x01A1: 'QUOTIENT',
    0x01A2: 'DELTA',
    0x01A3: 'GESTEP',
    0x01A4: 'ISEVEN',
    0x01A5: 'ISODD',
    0x01A6: 'MROUND',
    0x01A7: 'ERF',
    0x01A8: 'ERFC',
    0x01A9: 'BESSELJ',
    0x01AA: 'BESSELK',
    0x01AB: 'BESSELY',
    0x01AC: 'BESSELI',
    0x01AD: 'XIRR',
    0x01AE: 'XNPV',
    0x01AF: 'PRICEMAT',
    0x01B0: 'YIELDMAT',
    0x01B1: 'INTRATE',
    0x01B2: 'RECEIVED',
    0x01B3: 'DISC',
    0x01B4: 'PRICEDISC',
    0x01B5: 'YIELDDISC',
    0x01B6: 'TBILLEQ',
    0x01B7: 'TBILLPRICE',
    0x01B8: 'TBILLYIELD',
    0x01B9: 'PRICE',
    0x01BA: 'YIELD',
    0x01BB: 'DOLLARDE',
    0x01BC: 'DOLLARFR',
    0x01BD: 'NOMINAL',
    0x01BE: 'EFFECT',
    0x01BF: 'CUMPRINC',
    0x01C0: 'CUMIPMT',
    0x01C1: 'EDATE',
    0x01C2: 'EOMONTH',
    0x01C3: 'YEARFRAC',
    0x01C4: 'COUPDAYBS',
    0x01C5: 'COUPDAYS',
    0x01C6: 'COUPDAYSNC',
    0x01C7: 'COUPNCD',
    0x01C8: 'COUPNUM',
    0x01C9: 'COUPPCD',
    0x01CA: 'DURATION',
    0x01CB: 'MDURATION',
    0x01CC: 'ODDLPRICE',
    0x01CD: 'ODDLYIELD',
    0x01CE: 'ODDFPRICE',
    0x01CF: 'ODDFYIELD',
    0x01D0: 'RANDBETWEEN',
    0x01D1: 'WEEKNUM',
    0x01D2: 'AMORDEGRC',
    0x01D3: 'AMORLINC',
    0x01D4: 'CONVERT',
    0x02D4: 'SHEETJS',
    0x01D5: 'ACCRINT',
    0x01D6: 'ACCRINTM',
    0x01D7: 'WORKDAY',
    0x01D8: 'NETWORKDAYS',
    0x01D9: 'GCD',
    0x01DA: 'MULTINOMIAL',
    0x01DB: 'LCM',
    0x01DC: 'FVSCHEDULE',
    0x01DD: 'CUBEKPIMEMBER',
    0x01DE: 'CUBESET',
    0x01DF: 'CUBESETCOUNT',
    0x01E0: 'IFERROR',
    0x01E1: 'COUNTIFS',
    0x01E2: 'SUMIFS',
    0x01E3: 'AVERAGEIF',
    0x01E4: 'AVERAGEIFS'
  };
  var FtabArgc = {
    0x0002: 1, /* ISNA */
    0x0003: 1, /* ISERROR */
    0x000A: 0, /* NA */
    0x000F: 1, /* SIN */
    0x0010: 1, /* COS */
    0x0011: 1, /* TAN */
    0x0012: 1, /* ATAN */
    0x0013: 0, /* PI */
    0x0014: 1, /* SQRT */
    0x0015: 1, /* EXP */
    0x0016: 1, /* LN */
    0x0017: 1, /* LOG10 */
    0x0018: 1, /* ABS */
    0x0019: 1, /* INT */
    0x001A: 1, /* SIGN */
    0x001B: 2, /* ROUND */
    0x001E: 2, /* REPT */
    0x001F: 3, /* MID */
    0x0020: 1, /* LEN */
    0x0021: 1, /* VALUE */
    0x0022: 0, /* TRUE */
    0x0023: 0, /* FALSE */
    0x0026: 1, /* NOT */
    0x0027: 2, /* MOD */
    0x0028: 3, /* DCOUNT */
    0x0029: 3, /* DSUM */
    0x002A: 3, /* DAVERAGE */
    0x002B: 3, /* DMIN */
    0x002C: 3, /* DMAX */
    0x002D: 3, /* DSTDEV */
    0x002F: 3, /* DVAR */
    0x0030: 2, /* TEXT */
    0x0035: 1, /* GOTO */
    0x003D: 3, /* MIRR */
    0x003F: 0, /* RAND */
    0x0041: 3, /* DATE */
    0x0042: 3, /* TIME */
    0x0043: 1, /* DAY */
    0x0044: 1, /* MONTH */
    0x0045: 1, /* YEAR */
    0x0046: 1, /* WEEKDAY */
    0x0047: 1, /* HOUR */
    0x0048: 1, /* MINUTE */
    0x0049: 1, /* SECOND */
    0x004A: 0, /* NOW */
    0x004B: 1, /* AREAS */
    0x004C: 1, /* ROWS */
    0x004D: 1, /* COLUMNS */
    0x004F: 2, /* ABSREF */
    0x0050: 2, /* RELREF */
    0x0053: 1, /* TRANSPOSE */
    0x0055: 0, /* STEP */
    0x0056: 1, /* TYPE */
    0x0059: 0, /* CALLER */
    0x005A: 1, /* DEREF */
    0x005E: 0, /* ACTIVE.CELL */
    0x005F: 0, /* SELECTION */
    0x0061: 2, /* ATAN2 */
    0x0062: 1, /* ASIN */
    0x0063: 1, /* ACOS */
    0x0065: 3, /* HLOOKUP */
    0x0066: 3, /* VLOOKUP */
    0x0069: 1, /* ISREF */
    0x006A: 1, /* GET.FORMULA */
    0x006C: 2, /* SET.VALUE */
    0x006F: 1, /* CHAR */
    0x0070: 1, /* LOWER */
    0x0071: 1, /* UPPER */
    0x0072: 1, /* PROPER */
    0x0075: 2, /* EXACT */
    0x0076: 1, /* TRIM */
    0x0077: 4, /* REPLACE */
    0x0079: 1, /* CODE */
    0x007E: 1, /* ISERR */
    0x007F: 1, /* ISTEXT */
    0x0080: 1, /* ISNUMBER */
    0x0081: 1, /* ISBLANK */
    0x0082: 1, /* T */
    0x0083: 1, /* N */
    0x0085: 1, /* FCLOSE */
    0x0086: 1, /* FSIZE */
    0x0087: 1, /* FREADLN */
    0x0088: 2, /* FREAD */
    0x0089: 2, /* FWRITELN */
    0x008A: 2, /* FWRITE */
    0x008C: 1, /* DATEVALUE */
    0x008D: 1, /* TIMEVALUE */
    0x008E: 3, /* SLN */
    0x008F: 4, /* SYD */
    0x0090: 4, /* DDB */
    0x00A1: 1, /* DIALOG.BOX */
    0x00A2: 1, /* CLEAN */
    0x00A3: 1, /* MDETERM */
    0x00A4: 1, /* MINVERSE */
    0x00A5: 2, /* MMULT */
    0x00AC: 1, /* WHILE */
    0x00AF: 2, /* INITIATE */
    0x00B0: 2, /* REQUEST */
    0x00B1: 3, /* POKE */
    0x00B2: 2, /* EXECUTE */
    0x00B3: 1, /* TERMINATE */
    0x00B8: 1, /* FACT */
    0x00BA: 1, /* GET.WORKSPACE */
    0x00BD: 3, /* DPRODUCT */
    0x00BE: 1, /* ISNONTEXT */
    0x00C3: 3, /* DSTDEVP */
    0x00C4: 3, /* DVARP */
    0x00C5: 1, /* TRUNC */
    0x00C6: 1, /* ISLOGICAL */
    0x00C7: 3, /* DCOUNTA */
    0x00C9: 1, /* UNREGISTER */
    0x00CF: 4, /* REPLACEB */
    0x00D2: 3, /* MIDB */
    0x00D3: 1, /* LENB */
    0x00D4: 2, /* ROUNDUP */
    0x00D5: 2, /* ROUNDDOWN */
    0x00D6: 1, /* ASC */
    0x00D7: 1, /* DBCS */
    0x00E1: 0, /* END.IF */
    0x00E5: 1, /* SINH */
    0x00E6: 1, /* COSH */
    0x00E7: 1, /* TANH */
    0x00E8: 1, /* ASINH */
    0x00E9: 1, /* ACOSH */
    0x00EA: 1, /* ATANH */
    0x00EB: 3, /* DGET */
    0x00F4: 1, /* INFO */
    0x00F7: 4, /* DB */
    0x00FC: 2, /* FREQUENCY */
    0x0101: 1, /* EVALUATE */
    0x0105: 1, /* ERROR.TYPE */
    0x010F: 1, /* GAMMALN */
    0x0111: 4, /* BINOMDIST */
    0x0112: 2, /* CHIDIST */
    0x0113: 2, /* CHIINV */
    0x0114: 2, /* COMBIN */
    0x0115: 3, /* CONFIDENCE */
    0x0116: 3, /* CRITBINOM */
    0x0117: 1, /* EVEN */
    0x0118: 3, /* EXPONDIST */
    0x0119: 3, /* FDIST */
    0x011A: 3, /* FINV */
    0x011B: 1, /* FISHER */
    0x011C: 1, /* FISHERINV */
    0x011D: 2, /* FLOOR */
    0x011E: 4, /* GAMMADIST */
    0x011F: 3, /* GAMMAINV */
    0x0120: 2, /* CEILING */
    0x0121: 4, /* HYPGEOMDIST */
    0x0122: 3, /* LOGNORMDIST */
    0x0123: 3, /* LOGINV */
    0x0124: 3, /* NEGBINOMDIST */
    0x0125: 4, /* NORMDIST */
    0x0126: 1, /* NORMSDIST */
    0x0127: 3, /* NORMINV */
    0x0128: 1, /* NORMSINV */
    0x0129: 3, /* STANDARDIZE */
    0x012A: 1, /* ODD */
    0x012B: 2, /* PERMUT */
    0x012C: 3, /* POISSON */
    0x012D: 3, /* TDIST */
    0x012E: 4, /* WEIBULL */
    0x012F: 2, /* SUMXMY2 */
    0x0130: 2, /* SUMX2MY2 */
    0x0131: 2, /* SUMX2PY2 */
    0x0132: 2, /* CHITEST */
    0x0133: 2, /* CORREL */
    0x0134: 2, /* COVAR */
    0x0135: 3, /* FORECAST */
    0x0136: 2, /* FTEST */
    0x0137: 2, /* INTERCEPT */
    0x0138: 2, /* PEARSON */
    0x0139: 2, /* RSQ */
    0x013A: 2, /* STEYX */
    0x013B: 2, /* SLOPE */
    0x013C: 4, /* TTEST */
    0x0145: 2, /* LARGE */
    0x0146: 2, /* SMALL */
    0x0147: 2, /* QUARTILE */
    0x0148: 2, /* PERCENTILE */
    0x014B: 2, /* TRIMMEAN */
    0x014C: 2, /* TINV */
    0x0151: 2, /* POWER */
    0x0156: 1, /* RADIANS */
    0x0157: 1, /* DEGREES */
    0x015A: 2, /* COUNTIF */
    0x015B: 1, /* COUNTBLANK */
    0x015E: 4, /* ISPMT */
    0x015F: 3, /* DATEDIF */
    0x0160: 1, /* DATESTRING */
    0x0161: 2, /* NUMBERSTRING */
    0x0168: 1, /* PHONETIC */
    0x0170: 1, /* BAHTTEXT */
    0x0171: 1, /* THAIDAYOFWEEK */
    0x0172: 1, /* THAIDIGIT */
    0x0173: 1, /* THAIMONTHOFYEAR */
    0x0174: 1, /* THAINUMSOUND */
    0x0175: 1, /* THAINUMSTRING */
    0x0176: 1, /* THAISTRINGLENGTH */
    0x0177: 1, /* ISTHAIDIGIT */
    0x0178: 1, /* ROUNDBAHTDOWN */
    0x0179: 1, /* ROUNDBAHTUP */
    0x017A: 1, /* THAIYEAR */
    0x017E: 3, /* CUBEMEMBERPROPERTY */
    0x0181: 1, /* HEX2DEC */
    0x0188: 1, /* OCT2DEC */
    0x0189: 1, /* BIN2DEC */
    0x018C: 2, /* IMSUB */
    0x018D: 2, /* IMDIV */
    0x018E: 2, /* IMPOWER */
    0x018F: 1, /* IMABS */
    0x0190: 1, /* IMSQRT */
    0x0191: 1, /* IMLN */
    0x0192: 1, /* IMLOG2 */
    0x0193: 1, /* IMLOG10 */
    0x0194: 1, /* IMSIN */
    0x0195: 1, /* IMCOS */
    0x0196: 1, /* IMEXP */
    0x0197: 1, /* IMARGUMENT */
    0x0198: 1, /* IMCONJUGATE */
    0x0199: 1, /* IMAGINARY */
    0x019A: 1, /* IMREAL */
    0x019E: 4, /* SERIESSUM */
    0x019F: 1, /* FACTDOUBLE */
    0x01A0: 1, /* SQRTPI */
    0x01A1: 2, /* QUOTIENT */
    0x01A4: 1, /* ISEVEN */
    0x01A5: 1, /* ISODD */
    0x01A6: 2, /* MROUND */
    0x01A8: 1, /* ERFC */
    0x01A9: 2, /* BESSELJ */
    0x01AA: 2, /* BESSELK */
    0x01AB: 2, /* BESSELY */
    0x01AC: 2, /* BESSELI */
    0x01AE: 3, /* XNPV */
    0x01B6: 3, /* TBILLEQ */
    0x01B7: 3, /* TBILLPRICE */
    0x01B8: 3, /* TBILLYIELD */
    0x01BB: 2, /* DOLLARDE */
    0x01BC: 2, /* DOLLARFR */
    0x01BD: 2, /* NOMINAL */
    0x01BE: 2, /* EFFECT */
    0x01BF: 6, /* CUMPRINC */
    0x01C0: 6, /* CUMIPMT */
    0x01C1: 2, /* EDATE */
    0x01C2: 2, /* EOMONTH */
    0x01D0: 2, /* RANDBETWEEN */
    0x01D4: 3, /* CONVERT */
    0x01DC: 2, /* FVSCHEDULE */
    0x01DF: 1, /* CUBESETCOUNT */
    0x01E0: 2, /* IFERROR */
    0xFFFF: 0
  };
  /* [MS-XLSX] 2.2.3 Functions */
  /* [MS-XLSB] 2.5.97.10 Ftab */
  var XLSXFutureFunctions = {
    "_xlfn.ACOT": "ACOT",
    "_xlfn.ACOTH": "ACOTH",
    "_xlfn.AGGREGATE": "AGGREGATE",
    "_xlfn.ARABIC": "ARABIC",
    "_xlfn.AVERAGEIF": "AVERAGEIF",
    "_xlfn.AVERAGEIFS": "AVERAGEIFS",
    "_xlfn.BASE": "BASE",
    "_xlfn.BETA.DIST": "BETA.DIST",
    "_xlfn.BETA.INV": "BETA.INV",
    "_xlfn.BINOM.DIST": "BINOM.DIST",
    "_xlfn.BINOM.DIST.RANGE": "BINOM.DIST.RANGE",
    "_xlfn.BINOM.INV": "BINOM.INV",
    "_xlfn.BITAND": "BITAND",
    "_xlfn.BITLSHIFT": "BITLSHIFT",
    "_xlfn.BITOR": "BITOR",
    "_xlfn.BITRSHIFT": "BITRSHIFT",
    "_xlfn.BITXOR": "BITXOR",
    "_xlfn.CEILING.MATH": "CEILING.MATH",
    "_xlfn.CEILING.PRECISE": "CEILING.PRECISE",
    "_xlfn.CHISQ.DIST": "CHISQ.DIST",
    "_xlfn.CHISQ.DIST.RT": "CHISQ.DIST.RT",
    "_xlfn.CHISQ.INV": "CHISQ.INV",
    "_xlfn.CHISQ.INV.RT": "CHISQ.INV.RT",
    "_xlfn.CHISQ.TEST": "CHISQ.TEST",
    "_xlfn.COMBINA": "COMBINA",
    "_xlfn.CONCAT": "CONCAT",
    "_xlfn.CONFIDENCE.NORM": "CONFIDENCE.NORM",
    "_xlfn.CONFIDENCE.T": "CONFIDENCE.T",
    "_xlfn.COT": "COT",
    "_xlfn.COTH": "COTH",
    "_xlfn.COUNTIFS": "COUNTIFS",
    "_xlfn.COVARIANCE.P": "COVARIANCE.P",
    "_xlfn.COVARIANCE.S": "COVARIANCE.S",
    "_xlfn.CSC": "CSC",
    "_xlfn.CSCH": "CSCH",
    "_xlfn.DAYS": "DAYS",
    "_xlfn.DECIMAL": "DECIMAL",
    "_xlfn.ECMA.CEILING": "ECMA.CEILING",
    "_xlfn.ERF.PRECISE": "ERF.PRECISE",
    "_xlfn.ERFC.PRECISE": "ERFC.PRECISE",
    "_xlfn.EXPON.DIST": "EXPON.DIST",
    "_xlfn.F.DIST": "F.DIST",
    "_xlfn.F.DIST.RT": "F.DIST.RT",
    "_xlfn.F.INV": "F.INV",
    "_xlfn.F.INV.RT": "F.INV.RT",
    "_xlfn.F.TEST": "F.TEST",
    "_xlfn.FILTERXML": "FILTERXML",
    "_xlfn.FLOOR.MATH": "FLOOR.MATH",
    "_xlfn.FLOOR.PRECISE": "FLOOR.PRECISE",
    "_xlfn.FORECAST.ETS": "FORECAST.ETS",
    "_xlfn.FORECAST.ETS.CONFINT": "FORECAST.ETS.CONFINT",
    "_xlfn.FORECAST.ETS.SEASONALITY": "FORECAST.ETS.SEASONALITY",
    "_xlfn.FORECAST.ETS.STAT": "FORECAST.ETS.STAT",
    "_xlfn.FORECAST.LINEAR": "FORECAST.LINEAR",
    "_xlfn.FORMULATEXT": "FORMULATEXT",
    "_xlfn.GAMMA": "GAMMA",
    "_xlfn.GAMMA.DIST": "GAMMA.DIST",
    "_xlfn.GAMMA.INV": "GAMMA.INV",
    "_xlfn.GAMMALN.PRECISE": "GAMMALN.PRECISE",
    "_xlfn.GAUSS": "GAUSS",
    "_xlfn.HYPGEOM.DIST": "HYPGEOM.DIST",
    "_xlfn.IFERROR": "IFERROR",
    "_xlfn.IFNA": "IFNA",
    "_xlfn.IFS": "IFS",
    "_xlfn.IMCOSH": "IMCOSH",
    "_xlfn.IMCOT": "IMCOT",
    "_xlfn.IMCSC": "IMCSC",
    "_xlfn.IMCSCH": "IMCSCH",
    "_xlfn.IMSEC": "IMSEC",
    "_xlfn.IMSECH": "IMSECH",
    "_xlfn.IMSINH": "IMSINH",
    "_xlfn.IMTAN": "IMTAN",
    "_xlfn.ISFORMULA": "ISFORMULA",
    "_xlfn.ISO.CEILING": "ISO.CEILING",
    "_xlfn.ISOWEEKNUM": "ISOWEEKNUM",
    "_xlfn.LOGNORM.DIST": "LOGNORM.DIST",
    "_xlfn.LOGNORM.INV": "LOGNORM.INV",
    "_xlfn.MAXIFS": "MAXIFS",
    "_xlfn.MINIFS": "MINIFS",
    "_xlfn.MODE.MULT": "MODE.MULT",
    "_xlfn.MODE.SNGL": "MODE.SNGL",
    "_xlfn.MUNIT": "MUNIT",
    "_xlfn.NEGBINOM.DIST": "NEGBINOM.DIST",
    "_xlfn.NETWORKDAYS.INTL": "NETWORKDAYS.INTL",
    "_xlfn.NIGBINOM": "NIGBINOM",
    "_xlfn.NORM.DIST": "NORM.DIST",
    "_xlfn.NORM.INV": "NORM.INV",
    "_xlfn.NORM.S.DIST": "NORM.S.DIST",
    "_xlfn.NORM.S.INV": "NORM.S.INV",
    "_xlfn.NUMBERVALUE": "NUMBERVALUE",
    "_xlfn.PDURATION": "PDURATION",
    "_xlfn.PERCENTILE.EXC": "PERCENTILE.EXC",
    "_xlfn.PERCENTILE.INC": "PERCENTILE.INC",
    "_xlfn.PERCENTRANK.EXC": "PERCENTRANK.EXC",
    "_xlfn.PERCENTRANK.INC": "PERCENTRANK.INC",
    "_xlfn.PERMUTATIONA": "PERMUTATIONA",
    "_xlfn.PHI": "PHI",
    "_xlfn.POISSON.DIST": "POISSON.DIST",
    "_xlfn.QUARTILE.EXC": "QUARTILE.EXC",
    "_xlfn.QUARTILE.INC": "QUARTILE.INC",
    "_xlfn.QUERYSTRING": "QUERYSTRING",
    "_xlfn.RANK.AVG": "RANK.AVG",
    "_xlfn.RANK.EQ": "RANK.EQ",
    "_xlfn.RRI": "RRI",
    "_xlfn.SEC": "SEC",
    "_xlfn.SECH": "SECH",
    "_xlfn.SHEET": "SHEET",
    "_xlfn.SHEETS": "SHEETS",
    "_xlfn.SKEW.P": "SKEW.P",
    "_xlfn.STDEV.P": "STDEV.P",
    "_xlfn.STDEV.S": "STDEV.S",
    "_xlfn.SUMIFS": "SUMIFS",
    "_xlfn.SWITCH": "SWITCH",
    "_xlfn.T.DIST": "T.DIST",
    "_xlfn.T.DIST.2T": "T.DIST.2T",
    "_xlfn.T.DIST.RT": "T.DIST.RT",
    "_xlfn.T.INV": "T.INV",
    "_xlfn.T.INV.2T": "T.INV.2T",
    "_xlfn.T.TEST": "T.TEST",
    "_xlfn.TEXTJOIN": "TEXTJOIN",
    "_xlfn.UNICHAR": "UNICHAR",
    "_xlfn.UNICODE": "UNICODE",
    "_xlfn.VAR.P": "VAR.P",
    "_xlfn.VAR.S": "VAR.S",
    "_xlfn.WEBSERVICE": "WEBSERVICE",
    "_xlfn.WEIBULL.DIST": "WEIBULL.DIST",
    "_xlfn.WORKDAY.INTL": "WORKDAY.INTL",
    "_xlfn.XOR": "XOR",
    "_xlfn.Z.TEST": "Z.TEST"
  };

  /* Part 3 TODO: actually parse formulae */
  function ods_to_csf_formula(f) {
    if(f.slice(0,3) == "of:") f = f.slice(3);
    /* 5.2 Basic Expressions */
    if(f.charCodeAt(0) == 61) {
      f = f.slice(1);
      if(f.charCodeAt(0) == 61) f = f.slice(1);
    }
    f = f.replace(/COM\.MICROSOFT\./g, "");
    /* Part 3 Section 5.8 References */
    f = f.replace(/\[((?:\.[A-Z]+[0-9]+)(?::\.[A-Z]+[0-9]+)?)\]/g, function($$, $1) { return $1.replace(/\./g,""); });
    /* TODO: something other than this */
    f = f.replace(/\[.(#[A-Z]*[?!])\]/g, "$1");
    return f.replace(/[;~]/g,",").replace(/\|/g,";");
  }

  function csf_to_ods_formula(f) {
    var o = "of:=" + f.replace(crefregex, "$1[.$2$3$4$5]").replace(/\]:\[/g,":");
    /* TODO: something other than this */
    return o.replace(/;/g, "|").replace(/,/g,";");
  }

  function ods_to_csf_3D(r) {
    var a = r.split(":");
    var s = a[0].split(".")[0];
    return [s, a[0].split(".")[1] + (a.length > 1 ? (":" + (a[1].split(".")[1] || a[1].split(".")[0])) : "")];
  }

  function csf_to_ods_3D(r) {
    return r.replace(/\./,"!");
  }

  var strs = {}; // shared strings
  var _ssfopts = {}; // spreadsheet formatting options

  RELS.WS = [
    "http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet",
    "http://purl.oclc.org/ooxml/officeDocument/relationships/worksheet"
  ];

  /*global Map */
  var browser_has_Map = typeof Map !== 'undefined';

  function get_sst_id(sst, str, rev) {
    var i = 0, len = sst.length;
    if(rev) {
      if(browser_has_Map ? rev.has(str) : rev.hasOwnProperty(str)) {
        var revarr = browser_has_Map ? rev.get(str) : rev[str];
        for(; i < revarr.length; ++i) {
          if(sst[revarr[i]].t === str) { sst.Count ++; return revarr[i]; }
        }
      }
    } else for(; i < len; ++i) {
      if(sst[i].t === str) { sst.Count ++; return i; }
    }
    sst[len] = ({t:str}); sst.Count ++; sst.Unique ++;
    if(rev) {
      if(browser_has_Map) {
        if(!rev.has(str)) rev.set(str, []);
        rev.get(str).push(len);
      } else {
        if(!rev.hasOwnProperty(str)) rev[str] = [];
        rev[str].push(len);
      }
    }
    return len;
  }

  function col_obj_w(C, col) {
    var p = ({min:C+1,max:C+1});
    /* wch (chars), wpx (pixels) */
    var wch = -1;
    if(col.MDW) MDW = col.MDW;
    if(col.width != null) p.customWidth = 1;
    else if(col.wpx != null) wch = px2char(col.wpx);
    else if(col.wch != null) wch = col.wch;
    if(wch > -1) { p.width = char2width(wch); p.customWidth = 1; }
    else if(col.width != null) p.width = col.width;
    if(col.hidden) p.hidden = true;
    return p;
  }

  function default_margins(margins, mode) {
    if(!margins) return;
    var defs = [0.7, 0.7, 0.75, 0.75, 0.3, 0.3];
    if(mode == 'xlml') defs = [1, 1, 1, 1, 0.5, 0.5];
    if(margins.left   == null) margins.left   = defs[0];
    if(margins.right  == null) margins.right  = defs[1];
    if(margins.top    == null) margins.top    = defs[2];
    if(margins.bottom == null) margins.bottom = defs[3];
    if(margins.header == null) margins.header = defs[4];
    if(margins.footer == null) margins.footer = defs[5];
  }

  function get_cell_style(styles, cell, opts) {
    if (typeof style_builder != 'undefined') {
      if (/^\d+$/.exec(cell.s)) { return cell.s}  // if its already an integer index, let it be
      if (cell.s && (cell.s == +cell.s)) { return cell.s}  // if its already an integer index, let it be
      var s = cell.s || {};
      if (cell.z) s.numFmt = cell.z;
      return style_builder.addStyle(s);
    }
    else {
      var z = opts.revssf[cell.z != null ? cell.z : "General"];
      var i = 0x3c, len = styles.length;
      if (z == null && opts.ssf) {
        for (; i < 0x188; ++i) if (opts.ssf[i] == null) {
          SSF.load(cell.z, i);
          // $FlowIgnore
          opts.ssf[i] = cell.z;
          opts.revssf[cell.z] = z = i;
          break;
        }
      }
      for (i = 0; i != len; ++i) if (styles[i].numFmtId === z) return i;
      styles[len] = {
        numFmtId: z,
        fontId: 0,
        fillId: 0,
        borderId: 0,
        xfId: 0,
        applyNumberFormat: 1
      };
      return len;
    }
  }

  function safe_format(p, fmtid, fillid, opts, themes, styles) {
    if(p.t === 'z') return;
    if(p.t === 'd' && typeof p.v === 'string') p.v = parseDate(p.v);
    try {
      if(opts.cellNF) p.z = SSF._table[fmtid];
    } catch(e) { if(opts.WTF) throw e; }
    if(!opts || opts.cellText !== false) try {
      if(SSF._table[fmtid] == null) SSF.load(SSFImplicit[fmtid] || "General", fmtid);
      if(p.t === 'e') p.w = p.w || BErr[p.v];
      else if(fmtid === 0) {
        if(p.t === 'n') {
          if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
          else p.w = SSF._general_num(p.v);
        }
        else if(p.t === 'd') {
          var dd = datenum(p.v);
          if((dd|0) === dd) p.w = SSF._general_int(dd);
          else p.w = SSF._general_num(dd);
        }
        else if(p.v === undefined) return "";
        else p.w = SSF._general(p.v,_ssfopts);
      }
      else if(p.t === 'd') p.w = SSF.format(fmtid,datenum(p.v),_ssfopts);
      else p.w = SSF.format(fmtid,p.v,_ssfopts);
    } catch(e) { if(opts.WTF) throw e; }
    if(!opts.cellStyles) return;
    if(fillid != null) try {
      p.s = styles.Fills[fillid];
      if (p.s.fgColor && p.s.fgColor.theme && !p.s.fgColor.rgb) {
        p.s.fgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.fgColor.theme].rgb, p.s.fgColor.tint || 0);
        if(opts.WTF) p.s.fgColor.raw_rgb = themes.themeElements.clrScheme[p.s.fgColor.theme].rgb;
      }
      if (p.s.bgColor && p.s.bgColor.theme) {
        p.s.bgColor.rgb = rgb_tint(themes.themeElements.clrScheme[p.s.bgColor.theme].rgb, p.s.bgColor.tint || 0);
        if(opts.WTF) p.s.bgColor.raw_rgb = themes.themeElements.clrScheme[p.s.bgColor.theme].rgb;
      }
    } catch(e) { if(opts.WTF && styles.Fills) throw e; }
  }

  function check_ws(ws, sname, i) {
    if(ws && ws['!ref']) {
      var range = safe_decode_range(ws['!ref']);
      if(range.e.c < range.s.c || range.e.r < range.s.r) throw new Error("Bad range (" + i + "): " + ws['!ref']);
    }
  }
  function parse_ws_xml_dim(ws, s) {
    var d = safe_decode_range(s);
    if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.s.c>=0) ws["!ref"] = encode_range(d);
  }
  var mergecregex = /<(?:\w:)?mergeCell ref="[A-Z0-9:]+"\s*[\/]?>/g;
  var sheetdataregex = /<(?:\w+:)?sheetData>([\s\S]*)<\/(?:\w+:)?sheetData>/;
  var hlinkregex = /<(?:\w:)?hyperlink [^>]*>/mg;
  var dimregex = /"(\w*:\w*)"/;
  var colregex = /<(?:\w:)?col\b[^>]*[\/]?>/g;
  var afregex = /<(?:\w:)?autoFilter[^>]*([\/]|>([\s\S]*)<\/(?:\w:)?autoFilter)>/g;
  var marginregex= /<(?:\w:)?pageMargins[^>]*\/>/g;
  var sheetprregex = /<(?:\w:)?sheetPr\b(?:[^>a-z][^>]*)?\/>/;
  var svsregex = /<(?:\w:)?sheetViews[^>]*(?:[\/]|>([\s\S]*)<\/(?:\w:)?sheetViews)>/;
  /* 18.3 Worksheets */
  function parse_ws_xml(data, opts, idx, rels, wb, themes, styles) {
    if(!data) return data;
    if(DENSE != null && opts.dense == null) opts.dense = DENSE;

    /* 18.3.1.99 worksheet CT_Worksheet */
    var s = opts.dense ? ([]) : ({});
    var refguess = ({s: {r:2000000, c:2000000}, e: {r:0, c:0} });

    var data1 = "", data2 = "";
    var mtch = data.match(sheetdataregex);
    if(mtch) {
      data1 = data.slice(0, mtch.index);
      data2 = data.slice(mtch.index + mtch[0].length);
    } else data1 = data2 = data;

    /* 18.3.1.82 sheetPr CT_SheetPr */
    var sheetPr = data1.match(sheetprregex);
    if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);

    /* 18.3.1.35 dimension CT_SheetDimension */
    // $FlowIgnore
    var ridx = (data1.match(/<(?:\w*:)?dimension/)||{index:-1}).index;
    if(ridx > 0) {
      var ref = data1.slice(ridx,ridx+50).match(dimregex);
      if(ref) parse_ws_xml_dim(s, ref[1]);
    }

    /* 18.3.1.88 sheetViews CT_SheetViews */
    var svs = data1.match(svsregex);
    if(svs && svs[1]) parse_ws_xml_sheetviews(svs[1], wb);

    /* 18.3.1.17 cols CT_Cols */
    var columns = [];
    if(opts.cellStyles) {
      /* 18.3.1.13 col CT_Col */
      var cols = data1.match(colregex);
      if(cols) parse_ws_xml_cols(columns, cols);
    }

    /* 18.3.1.80 sheetData CT_SheetData ? */
    if(mtch) parse_ws_xml_data(mtch[1], s, opts, refguess, themes, styles);

    /* 18.3.1.2  autoFilter CT_AutoFilter */
    var afilter = data2.match(afregex);
    if(afilter) s['!autofilter'] = parse_ws_xml_autofilter(afilter[0]);

    /* 18.3.1.55 mergeCells CT_MergeCells */
    var merges = [];
    var _merge = data2.match(mergecregex);
    if(_merge) for(ridx = 0; ridx != _merge.length; ++ridx)
      merges[ridx] = safe_decode_range(_merge[ridx].slice(_merge[ridx].indexOf("\"")+1));

    /* 18.3.1.48 hyperlinks CT_Hyperlinks */
    var hlink = data2.match(hlinkregex);
    if(hlink) parse_ws_xml_hlinks(s, hlink, rels);

    /* 18.3.1.62 pageMargins CT_PageMargins */
    var margins = data2.match(marginregex);
    if(margins) s['!margins'] = parse_ws_xml_margins(parsexmltag(margins[0]));

    if(!s["!ref"] && refguess.e.c >= refguess.s.c && refguess.e.r >= refguess.s.r) s["!ref"] = encode_range(refguess);
    if(opts.sheetRows > 0 && s["!ref"]) {
      var tmpref = safe_decode_range(s["!ref"]);
      if(opts.sheetRows <= +tmpref.e.r) {
        tmpref.e.r = opts.sheetRows - 1;
        if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
        if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
        if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
        if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
        s["!fullref"] = s["!ref"];
        s["!ref"] = encode_range(tmpref);
      }
    }
    if(columns.length > 0) s["!cols"] = columns;
    if(merges.length > 0) s["!merges"] = merges;
    return s;
  }

  function write_ws_xml_merges(merges) {
    if(merges.length === 0) return "";
    var o = '<mergeCells count="' + merges.length + '">';
    for(var i = 0; i != merges.length; ++i) o += '<mergeCell ref="' + encode_range(merges[i]) + '"/>';
    return o + '</mergeCells>';
  }

  /* 18.3.1.82-3 sheetPr CT_ChartsheetPr / CT_SheetPr */
  function parse_ws_xml_sheetpr(sheetPr, s, wb, idx) {
    var data = parsexmltag(sheetPr);
    if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
    if(data.codeName) wb.Sheets[idx].CodeName = data.codeName;
  }

  /* 18.3.1.85 sheetProtection CT_SheetProtection */
  function write_ws_xml_protection(sp) {
    // algorithmName, hashValue, saltValue, spinCountpassword
    var o = ({sheet:1});
    var deffalse = ["objects", "scenarios", "selectLockedCells", "selectUnlockedCells"];
    var deftrue = [
      "formatColumns", "formatRows", "formatCells",
      "insertColumns", "insertRows", "insertHyperlinks",
      "deleteColumns", "deleteRows",
      "sort", "autoFilter", "pivotTables"
    ];
    deffalse.forEach(function(n) { if(sp[n] != null && sp[n]) o[n] = "1"; });
    deftrue.forEach(function(n) { if(sp[n] != null && !sp[n]) o[n] = "0"; });
    /* TODO: algorithm */
    if(sp.password) o.password = crypto_CreatePasswordVerifier_Method1(sp.password).toString(16).toUpperCase();
    return writextag('sheetProtection', null, o);
  }

  function parse_ws_xml_hlinks(s, data, rels) {
    var dense = Array.isArray(s);
    for(var i = 0; i != data.length; ++i) {
      var val = parsexmltag(utf8read(data[i]), true);
      if(!val.ref) return;
      var rel = ((rels || {})['!id']||[])[val.id];
      if(rel) {
        val.Target = rel.Target;
        if(val.location) val.Target += "#"+val.location;
      } else {
        val.Target = "#" + val.location;
        rel = {Target: val.Target, TargetMode: 'Internal'};
      }
      val.Rel = rel;
      if(val.tooltip) { val.Tooltip = val.tooltip; delete val.tooltip; }
      var rng = safe_decode_range(val.ref);
      for(var R=rng.s.r;R<=rng.e.r;++R) for(var C=rng.s.c;C<=rng.e.c;++C) {
        var addr = encode_cell({c:C,r:R});
        if(dense) {
          if(!s[R]) s[R] = [];
          if(!s[R][C]) s[R][C] = {t:"z",v:undefined};
          s[R][C].l = val;
        } else {
          if(!s[addr]) s[addr] = {t:"z",v:undefined};
          s[addr].l = val;
        }
      }
    }
  }

  function parse_ws_xml_margins(margin) {
    var o = {};
    ["left", "right", "top", "bottom", "header", "footer"].forEach(function(k) {
      if(margin[k]) o[k] = parseFloat(margin[k]);
    });
    return o;
  }
  function write_ws_xml_margins(margin) {
    default_margins(margin);
    return writextag('pageMargins', null, margin);
  }

  function parse_ws_xml_cols(columns, cols) {
    var seencol = false;
    for(var coli = 0; coli != cols.length; ++coli) {
      var coll = parsexmltag(cols[coli], true);
      if(coll.hidden) coll.hidden = parsexmlbool(coll.hidden);
      var colm=parseInt(coll.min, 10)-1, colM=parseInt(coll.max,10)-1;
      delete coll.min; delete coll.max; coll.width = +coll.width;
      if(!seencol && coll.width) { seencol = true; find_mdw_colw(coll.width); }
      process_col(coll);
      while(colm <= colM) columns[colm++] = dup(coll);
    }
  }

  function write_ws_xml_cols(ws, cols) {
    var o = ["<cols>"], col;
    for(var i = 0; i != cols.length; ++i) {
      if(!(col = cols[i])) continue;
      o[o.length] = (writextag('col', null, col_obj_w(i, col)));
    }
    o[o.length] = "</cols>";
    return o.join("");
  }

  function parse_ws_xml_autofilter(data) {
    var o = { ref: (data.match(/ref="([^"]*)"/)||[])[1]};
    return o;
  }
  function write_ws_xml_autofilter(data, ws, wb, idx) {
    var ref = typeof data.ref == "string" ? data.ref : encode_range(data.ref);
    if(!wb.Workbook) wb.Workbook = {};
    if(!wb.Workbook.Names) wb.Workbook.Names = [];
    var names = wb.Workbook.Names;
    var range = decode_range(ref);
    if(range.s.r == range.e.r) { range.e.r = decode_range(ws["!ref"]).e.r; ref = encode_range(range); }
    for(var i = 0; i < names.length; ++i) {
      var name = names[i];
      if(name.Name != '_xlnm._FilterDatabase') continue;
      if(name.Sheet != idx) continue;
      name.Ref = "'" + wb.SheetNames[idx] + "'!" + ref; break;
    }
    if(i == names.length) names.push({ Name: '_xlnm._FilterDatabase', Sheet: idx, Ref: "'" + wb.SheetNames[idx] + "'!" + ref  });
    return writextag("autoFilter", null, {ref:ref});
  }

  /* 18.3.1.88 sheetViews CT_SheetViews */
  /* 18.3.1.87 sheetView CT_SheetView */
  var sviewregex = /<(?:\w:)?sheetView(?:[^>a-z][^>]*)?\/>/;
  function parse_ws_xml_sheetviews(data, wb) {
    (data.match(sviewregex)||[]).forEach(function(r) {
      var tag = parsexmltag(r);
      if(parsexmlbool(tag.rightToLeft)) {
        if(!wb.Views) wb.Views = [{}];
        if(!wb.Views[0]) wb.Views[0] = {};
        wb.Views[0].RTL = true;
      }
    });
  }
  function write_ws_xml_sheetviews(ws, opts, idx, wb) {
    var sview = {workbookViewId:"0"};
    // $FlowIgnore
    if( (((wb||{}).Workbook||{}).Views||[])[0] ) sview.rightToLeft = wb.Workbook.Views[0].RTL ? "1" : "0";
    return writextag("sheetViews", writextag("sheetView", null, sview), {});
  }

  function write_ws_xml_cell(cell, ref, ws, opts) {
    if(cell.v === undefined && cell.f === undefined || cell.t === 'z') return "";
    var vv = "";
    var oldt = cell.t, oldv = cell.v;
    switch(cell.t) {
      case 'b': vv = cell.v ? "1" : "0"; break;
      case 'n': vv = ''+cell.v; break;
      case 'e': vv = BErr[cell.v]; break;
      case 'd':
        if(opts.cellDates) vv = parseDate(cell.v, -1).toISOString();
        else {
          cell = dup(cell);
          cell.t = 'n';
          vv = ''+(cell.v = datenum(parseDate(cell.v)));
        }
        if(typeof cell.z === 'undefined') cell.z = SSF._table[14];
        break;
      default: vv = cell.v; break;
    }
    var v = writetag('v', escapexml(vv)), o = ({r:ref});
    /* TODO: cell style */
    var os = get_cell_style(opts.cellXfs, cell, opts);
    if(os !== 0) o.s = os;
    switch(cell.t) {
      case 'n': break;
      case 'd': o.t = "d"; break;
      case 'b': o.t = "b"; break;
      case 'e': o.t = "e"; break;
      default: if(cell.v == null) { delete cell.t; break; }
        if(opts.bookSST) {
          v = writetag('v', ''+get_sst_id(opts.Strings, cell.v, opts.revStrings));
          o.t = "s"; break;
        }
        o.t = "str"; break;
    }
    if(cell.t != oldt) { cell.t = oldt; cell.v = oldv; }
    if(cell.f) {
      var ff = cell.F && cell.F.slice(0, ref.length) == ref ? {t:"array", ref:cell.F} : null;
      v = writextag('f', escapexml(cell.f), ff) + (cell.v != null ? v : "");
    }
    if(cell.l) ws['!links'].push([ref, cell.l]);
    if(cell.c) ws['!comments'].push([ref, cell.c]);
    return writextag('c', v, o);
  }

  var parse_ws_xml_data = (function() {
    var cellregex = /<(?:\w+:)?c[ >]/, rowregex = /<\/(?:\w+:)?row>/;
    var rregex = /r=["']([^"']*)["']/, isregex = /<(?:\w+:)?is>([\S\s]*?)<\/(?:\w+:)?is>/;
    var refregex = /ref=["']([^"']*)["']/;
    var match_v = matchtag("v"), match_f = matchtag("f");

    return function parse_ws_xml_data(sdata, s, opts, guess, themes, styles) {
      var ri = 0, x = "", cells = [], cref = [], idx=0, i=0, cc=0, d="", p;
      var tag, tagr = 0, tagc = 0;
      var sstr, ftag;
      var fmtid = 0, fillid = 0;
      var do_format = Array.isArray(styles.CellXf), cf;
      var arrayf = [];
      var sharedf = [];
      var dense = Array.isArray(s);
      var rows = [], rowobj = {}, rowrite = false;
      for(var marr = sdata.split(rowregex), mt = 0, marrlen = marr.length; mt != marrlen; ++mt) {
        x = marr[mt].trim();
        var xlen = x.length;
        if(xlen === 0) continue;

        /* 18.3.1.73 row CT_Row */
        for(ri = 0; ri < xlen; ++ri) if(x.charCodeAt(ri) === 62) break; ++ri;
        tag = parsexmltag(x.slice(0,ri), true);
        tagr = tag.r != null ? parseInt(tag.r, 10) : tagr+1; tagc = -1;
        if(opts.sheetRows && opts.sheetRows < tagr) continue;
        if(guess.s.r > tagr - 1) guess.s.r = tagr - 1;
        if(guess.e.r < tagr - 1) guess.e.r = tagr - 1;

        if(opts && opts.cellStyles) {
          rowobj = {}; rowrite = false;
          if(tag.ht) { rowrite = true; rowobj.hpt = parseFloat(tag.ht); rowobj.hpx = pt2px(rowobj.hpt); }
          if(tag.hidden == "1") { rowrite = true; rowobj.hidden = true; }
          if(tag.outlineLevel != null) { rowrite = true; rowobj.level = +tag.outlineLevel; }
          if(rowrite) rows[tagr-1] = rowobj;
        }

        /* 18.3.1.4 c CT_Cell */
        cells = x.slice(ri).split(cellregex);
        for(ri = 0; ri != cells.length; ++ri) {
          x = cells[ri].trim();
          if(x.length === 0) continue;
          cref = x.match(rregex); idx = ri; i=0; cc=0;
          x = "<c " + (x.slice(0,1)=="<"?">":"") + x;
          if(cref != null && cref.length === 2) {
            idx = 0; d=cref[1];
            for(i=0; i != d.length; ++i) {
              if((cc=d.charCodeAt(i)-64) < 1 || cc > 26) break;
              idx = 26*idx + cc;
            }
            --idx;
            tagc = idx;
          } else ++tagc;
          for(i = 0; i != x.length; ++i) if(x.charCodeAt(i) === 62) break; ++i;
          tag = parsexmltag(x.slice(0,i), true);
          if(!tag.r) tag.r = encode_cell({r:tagr-1, c:tagc});
          d = x.slice(i);
          p = ({t:""});

          if((cref=d.match(match_v))!= null && cref[1] !== '') p.v=unescapexml(cref[1]);
          if(opts.cellFormula) {
            if((cref=d.match(match_f))!= null && cref[1] !== '') {
              /* TODO: match against XLSXFutureFunctions */
              p.f=_xlfn(unescapexml(utf8read(cref[1])));
              if(cref[0].indexOf('t="array"') > -1) {
                p.F = (d.match(refregex)||[])[1];
                if(p.F.indexOf(":") > -1) arrayf.push([safe_decode_range(p.F), p.F]);
              } else if(cref[0].indexOf('t="shared"') > -1) {
                // TODO: parse formula
                ftag = parsexmltag(cref[0]);
                sharedf[parseInt(ftag.si, 10)] = [ftag, _xlfn(unescapexml(utf8read(cref[1]))), tag.r];
              }
            } else if((cref=d.match(/<f[^>]*\/>/))) {
              ftag = parsexmltag(cref[0]);
              if(sharedf[ftag.si]) p.f = shift_formula_xlsx(sharedf[ftag.si][1], sharedf[ftag.si][2]/*[0].ref*/, tag.r);
            }
            /* TODO: factor out contains logic */
            var _tag = decode_cell(tag.r);
            for(i = 0; i < arrayf.length; ++i)
              if(_tag.r >= arrayf[i][0].s.r && _tag.r <= arrayf[i][0].e.r)
                if(_tag.c >= arrayf[i][0].s.c && _tag.c <= arrayf[i][0].e.c)
                  p.F = arrayf[i][1];
          }

          if(tag.t == null && p.v === undefined) {
            if(p.f || p.F) {
              p.v = 0; p.t = "n";
            } else if(!opts.sheetStubs) continue;
            else p.t = "z";
          }
          else p.t = tag.t || "n";
          if(guess.s.c > tagc) guess.s.c = tagc;
          if(guess.e.c < tagc) guess.e.c = tagc;
          /* 18.18.11 t ST_CellType */
          switch(p.t) {
            case 'n':
              if(p.v == "" || p.v == null) {
                if(!opts.sheetStubs) continue;
                p.t = 'z';
              } else p.v = parseFloat(p.v);
              break;
            case 's':
              if(typeof p.v == 'undefined') {
                if(!opts.sheetStubs) continue;
                p.t = 'z';
              } else {
                sstr = strs[parseInt(p.v, 10)];
                p.v = sstr.t;
                p.r = sstr.r;
                if(opts.cellHTML) p.h = sstr.h;
              }
              break;
            case 'str':
              p.t = "s";
              p.v = (p.v!=null) ? utf8read(p.v) : '';
              if(opts.cellHTML) p.h = escapehtml(p.v);
              break;
            case 'inlineStr':
              cref = d.match(isregex);
              p.t = 's';
              if(cref != null && (sstr = parse_si(cref[1]))) p.v = sstr.t; else p.v = "";
              break;
            case 'b': p.v = parsexmlbool(p.v); break;
            case 'd':
              if(opts.cellDates) p.v = parseDate(p.v, 1);
              else { p.v = datenum(parseDate(p.v, 1)); p.t = 'n'; }
              break;
            /* error string in .w, number in .v */
            case 'e':
              if(!opts || opts.cellText !== false) p.w = p.v;
              p.v = RBErr[p.v]; break;
          }
          /* formatting */
          fmtid = fillid = 0;
          if(do_format && tag.s !== undefined) {
            cf = styles.CellXf[tag.s];
            if(cf != null) {
              if(cf.numFmtId != null) fmtid = cf.numFmtId;
              if(opts.cellStyles) {
                if(cf.fillId != null) fillid = cf.fillId;
              }
            }
          }
          safe_format(p, fmtid, fillid, opts, themes, styles);
          if(opts.cellDates && do_format && p.t == 'n' && SSF.is_date(SSF._table[fmtid])) { p.t = 'd'; p.v = numdate(p.v); }
          if(dense) {
            var _r = decode_cell(tag.r);
            if(!s[_r.r]) s[_r.r] = [];
            s[_r.r][_r.c] = p;
          } else s[tag.r] = p;
        }
      }
      if(rows.length > 0) s['!rows'] = rows;
    }; })();

  function write_ws_xml_data(ws, opts, idx, wb) {
    var o = [], r = [], range = safe_decode_range(ws['!ref']), cell="", ref, rr = "", cols = [], R=0, C=0, rows = ws['!rows'];
    var dense = Array.isArray(ws);
    var params = ({r:rr}), row, height = -1;
    for(C = range.s.c; C <= range.e.c; ++C) cols[C] = encode_col(C);
    for(R = range.s.r; R <= range.e.r; ++R) {
      r = [];
      rr = encode_row(R);
      for(C = range.s.c; C <= range.e.c; ++C) {
        ref = cols[C] + rr;
        var _cell = dense ? (ws[R]||[])[C]: ws[ref];
        if(_cell === undefined) continue;
        if((cell = write_ws_xml_cell(_cell, ref, ws, opts, idx, wb)) != null) r.push(cell);
      }
      if(r.length > 0 || (rows && rows[R])) {
        params = ({r:rr});
        if(rows && rows[R]) {
          row = rows[R];
          if(row.hidden) params.hidden = 1;
          height = -1;
          if(row.hpx) height = px2pt(row.hpx);
          else if(row.hpt) height = row.hpt;
          if(height > -1) { params.ht = height; params.customHeight = 1; }
          if(row.level) { params.outlineLevel = row.level; }
        }
        o[o.length] = (writextag('row', r.join(""), params));
      }
    }
    if(rows) for(; R < rows.length; ++R) {
      if(rows && rows[R]) {
        params = ({r:R+1});
        row = rows[R];
        if(row.hidden) params.hidden = 1;
        height = -1;
        if (row.hpx) height = px2pt(row.hpx);
        else if (row.hpt) height = row.hpt;
        if (height > -1) { params.ht = height; params.customHeight = 1; }
        if (row.level) { params.outlineLevel = row.level; }
        o[o.length] = (writextag('row', "", params));
      }
    }
    return o.join("");
  }

  var WS_XML_ROOT = writextag('worksheet', null, {
    'xmlns': XMLNS.main[0],
    'xmlns:r': XMLNS.r
  });

  function write_ws_xml(idx, opts, wb, rels) {
    var o = [XML_HEADER, WS_XML_ROOT];
    var s = wb.SheetNames[idx], sidx = 0, rdata = "";
    var ws = wb.Sheets[s];
    if(ws == null) ws = {};
    var ref = ws['!ref'] || 'A1';
    var range = safe_decode_range(ref);
    if(range.e.c > 0x3FFF || range.e.r > 0xFFFFF) {
      if(opts.WTF) throw new Error("Range " + ref + " exceeds format limit A1:XFD1048576");
      range.e.c = Math.min(range.e.c, 0x3FFF);
      range.e.r = Math.min(range.e.c, 0xFFFFF);
      ref = encode_range(range);
    }
    if(!rels) rels = {};
    ws['!comments'] = [];
    ws['!drawing'] = [];

    if(opts.bookType !== 'xlsx' && wb.vbaraw) {
      var cname = wb.SheetNames[idx];
      try { if(wb.Workbook) cname = wb.Workbook.Sheets[idx].CodeName || cname; } catch(e) {}
      o[o.length] = (writextag('sheetPr', null, {'codeName': escapexml(cname)}));
    }

    o[o.length] = (writextag('dimension', null, {'ref': ref}));

    o[o.length] = write_ws_xml_sheetviews(ws, opts, idx, wb);

    /* TODO: store in WB, process styles */
    if(opts.sheetFormat) o[o.length] = (writextag('sheetFormatPr', null, {
      defaultRowHeight:opts.sheetFormat.defaultRowHeight||'16',
      baseColWidth:opts.sheetFormat.baseColWidth||'10',
      outlineLevelRow:opts.sheetFormat.outlineLevelRow||'7'
    }));

    if(ws['!cols'] != null && ws['!cols'].length > 0) o[o.length] = (write_ws_xml_cols(ws, ws['!cols']));

    o[sidx = o.length] = '<sheetData/>';
    ws['!links'] = [];
    if(ws['!ref'] != null) {
      rdata = write_ws_xml_data(ws, opts, idx, wb, rels);
      if(rdata.length > 0) o[o.length] = (rdata);
    }
    if(o.length>sidx+1) { o[o.length] = ('</sheetData>'); o[sidx]=o[sidx].replace("/>",">"); }

    /* sheetCalcPr */

    if(ws['!protect'] != null) o[o.length] = write_ws_xml_protection(ws['!protect']);

    /* protectedRanges */
    /* scenarios */

    if(ws['!autofilter'] != null) o[o.length] = write_ws_xml_autofilter(ws['!autofilter'], ws, wb, idx);

    /* sortState */
    /* dataConsolidate */
    /* customSheetViews */

    if(ws['!merges'] != null && ws['!merges'].length > 0) o[o.length] = (write_ws_xml_merges(ws['!merges']));

    /* phoneticPr */
    /* conditionalFormatting */
    /* dataValidations */

    var relc = -1, rel, rId = -1;
    if(ws['!links'].length > 0) {
      o[o.length] = "<hyperlinks>";
      ws['!links'].forEach(function(l) {
        if(!l[1].Target) return;
        rel = ({"ref":l[0]});
        if(l[1].Target.charAt(0) != "#") {
          rId = add_rels(rels, -1, escapexml(l[1].Target).replace(/#.*$/, ""), RELS.HLINK);
          rel["r:id"] = "rId"+rId;
        }
        if((relc = l[1].Target.indexOf("#")) > -1) rel.location = escapexml(l[1].Target.slice(relc+1));
        if(l[1].Tooltip) rel.tooltip = escapexml(l[1].Tooltip);
        o[o.length] = writextag("hyperlink",null,rel);
      });
      o[o.length] = "</hyperlinks>";
    }
    delete ws['!links'];

    /* printOptions */
    if (ws['!margins'] != null) o[o.length] =  write_ws_xml_margins(ws['!margins']);
    /* pageSetup */

    //var hfidx = o.length;
    o[o.length] = "";

    /* rowBreaks */
    /* colBreaks */
    /* customProperties */
    /* cellWatches */

    if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) o[o.length] = writetag("ignoredErrors", writextag("ignoredError", null, {numberStoredAsText:1, sqref:ref}));

    /* smartTags */

    if(ws['!drawing'].length > 0) {
      rId = add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
      o[o.length] = writextag("drawing", null, {"r:id":"rId" + rId});
    }
    else delete ws['!drawing'];

    if(ws['!comments'].length > 0) {
      rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
      o[o.length] = writextag("legacyDrawing", null, {"r:id":"rId" + rId});
      ws['!legacy'] = rId;
    }

    /* drawingHF */
    /* picture */
    /* oleObjects */
    /* controls */
    /* webPublishItems */
    /* tableParts */
    /* extList */

    if(o.length>2) { o[o.length] = ('</worksheet>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }

  /* [MS-XLSB] 2.4.726 BrtRowHdr */
  function parse_BrtRowHdr(data, length) {
    var z = ({});
    var tgt = data.l + length;
    z.r = data.read_shift(4);
    data.l += 4; // TODO: ixfe
    var miyRw = data.read_shift(2);
    data.l += 1; // TODO: top/bot padding
    var flags = data.read_shift(1);
    data.l = tgt;
    if(flags & 0x07) z.level = flags & 0x07;
    if(flags & 0x10) z.hidden = true;
    if(flags & 0x20) z.hpt = miyRw / 20;
    return z;
  }
  function write_BrtRowHdr(R, range, ws) {
    var o = new_buf(17+8*16);
    var row = (ws['!rows']||[])[R]||{};
    o.write_shift(4, R);

    o.write_shift(4, 0); /* TODO: ixfe */

    var miyRw = 0x0140;
    if(row.hpx) miyRw = px2pt(row.hpx) * 20;
    else if(row.hpt) miyRw = row.hpt * 20;
    o.write_shift(2, miyRw);

    o.write_shift(1, 0); /* top/bot padding */

    var flags = 0x0;
    if(row.level) flags |= row.level;
    if(row.hidden) flags |= 0x10;
    if(row.hpx || row.hpt) flags |= 0x20;
    o.write_shift(1, flags);

    o.write_shift(1, 0); /* phonetic guide */

    /* [MS-XLSB] 2.5.8 BrtColSpan explains the mechanism */
    var ncolspan = 0, lcs = o.l;
    o.l += 4;

    var caddr = {r:R, c:0};
    for(var i = 0; i < 16; ++i) {
      if((range.s.c > ((i+1) << 10)) || (range.e.c < (i << 10))) continue;
      var first = -1, last = -1;
      for(var j = (i<<10); j < ((i+1)<<10); ++j) {
        caddr.c = j;
        var cell = Array.isArray(ws) ? (ws[caddr.r]||[])[caddr.c] : ws[encode_cell(caddr)];
        if(cell) { if(first < 0) first = j; last = j; }
      }
      if(first < 0) continue;
      ++ncolspan;
      o.write_shift(4, first);
      o.write_shift(4, last);
    }

    var l = o.l;
    o.l = lcs;
    o.write_shift(4, ncolspan);
    o.l = l;

    return o.length > o.l ? o.slice(0, o.l) : o;
  }
  function write_row_header(ba, ws, range, R) {
    var o = write_BrtRowHdr(R, range, ws);
    if((o.length > 17) || (ws['!rows']||[])[R]) write_record(ba, 'BrtRowHdr', o);
  }

  /* [MS-XLSB] 2.4.820 BrtWsDim */
  var parse_BrtWsDim = parse_UncheckedRfX;
  var write_BrtWsDim = write_UncheckedRfX;

  /* [MS-XLSB] 2.4.821 BrtWsFmtInfo */
  function parse_BrtWsFmtInfo() {
  }
//function write_BrtWsFmtInfo(ws, o) { }

  /* [MS-XLSB] 2.4.823 BrtWsProp */
  function parse_BrtWsProp(data, length) {
    var z = {};
    /* TODO: pull flags */
    data.l += 19;
    z.name = parse_XLSBCodeName(data, length - 19);
    return z;
  }
  function write_BrtWsProp(str, o) {
    if(o == null) o = new_buf(84+4*str.length);
    for(var i = 0; i < 3; ++i) o.write_shift(1,0);
    write_BrtColor({auto:1}, o);
    o.write_shift(-4,-1);
    o.write_shift(-4,-1);
    write_XLSBCodeName(str, o);
    return o.slice(0, o.l);
  }

  /* [MS-XLSB] 2.4.306 BrtCellBlank */
  function parse_BrtCellBlank(data) {
    var cell = parse_XLSBCell(data);
    return [cell];
  }
  function write_BrtCellBlank(cell, ncell, o) {
    if(o == null) o = new_buf(8);
    return write_XLSBCell(ncell, o);
  }


  /* [MS-XLSB] 2.4.307 BrtCellBool */
  function parse_BrtCellBool(data) {
    var cell = parse_XLSBCell(data);
    var fBool = data.read_shift(1);
    return [cell, fBool, 'b'];
  }
  function write_BrtCellBool(cell, ncell, o) {
    if(o == null) o = new_buf(9);
    write_XLSBCell(ncell, o);
    o.write_shift(1, cell.v ? 1 : 0);
    return o;
  }

  /* [MS-XLSB] 2.4.308 BrtCellError */
  function parse_BrtCellError(data) {
    var cell = parse_XLSBCell(data);
    var bError = data.read_shift(1);
    return [cell, bError, 'e'];
  }

  /* [MS-XLSB] 2.4.311 BrtCellIsst */
  function parse_BrtCellIsst(data) {
    var cell = parse_XLSBCell(data);
    var isst = data.read_shift(4);
    return [cell, isst, 's'];
  }
  function write_BrtCellIsst(cell, ncell, o) {
    if(o == null) o = new_buf(12);
    write_XLSBCell(ncell, o);
    o.write_shift(4, ncell.v);
    return o;
  }

  /* [MS-XLSB] 2.4.313 BrtCellReal */
  function parse_BrtCellReal(data) {
    var cell = parse_XLSBCell(data);
    var value = parse_Xnum(data);
    return [cell, value, 'n'];
  }
  function write_BrtCellReal(cell, ncell, o) {
    if(o == null) o = new_buf(16);
    write_XLSBCell(ncell, o);
    write_Xnum(cell.v, o);
    return o;
  }

  /* [MS-XLSB] 2.4.314 BrtCellRk */
  function parse_BrtCellRk(data) {
    var cell = parse_XLSBCell(data);
    var value = parse_RkNumber(data);
    return [cell, value, 'n'];
  }
  function write_BrtCellRk(cell, ncell, o) {
    if(o == null) o = new_buf(12);
    write_XLSBCell(ncell, o);
    write_RkNumber(cell.v, o);
    return o;
  }


  /* [MS-XLSB] 2.4.317 BrtCellSt */
  function parse_BrtCellSt(data) {
    var cell = parse_XLSBCell(data);
    var value = parse_XLWideString(data);
    return [cell, value, 'str'];
  }
  function write_BrtCellSt(cell, ncell, o) {
    if(o == null) o = new_buf(12 + 4 * cell.v.length);
    write_XLSBCell(ncell, o);
    write_XLWideString(cell.v, o);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.653 BrtFmlaBool */
  function parse_BrtFmlaBool(data, length, opts) {
    var end = data.l + length;
    var cell = parse_XLSBCell(data);
    cell.r = opts['!row'];
    var value = data.read_shift(1);
    var o = [cell, value, 'b'];
    if(opts.cellFormula) {
      data.l += 2;
      var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
      o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
    }
    else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.654 BrtFmlaError */
  function parse_BrtFmlaError(data, length, opts) {
    var end = data.l + length;
    var cell = parse_XLSBCell(data);
    cell.r = opts['!row'];
    var value = data.read_shift(1);
    var o = [cell, value, 'e'];
    if(opts.cellFormula) {
      data.l += 2;
      var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
      o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
    }
    else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.655 BrtFmlaNum */
  function parse_BrtFmlaNum(data, length, opts) {
    var end = data.l + length;
    var cell = parse_XLSBCell(data);
    cell.r = opts['!row'];
    var value = parse_Xnum(data);
    var o = [cell, value, 'n'];
    if(opts.cellFormula) {
      data.l += 2;
      var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
      o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
    }
    else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.656 BrtFmlaString */
  function parse_BrtFmlaString(data, length, opts) {
    var end = data.l + length;
    var cell = parse_XLSBCell(data);
    cell.r = opts['!row'];
    var value = parse_XLWideString(data);
    var o = [cell, value, 'str'];
    if(opts.cellFormula) {
      data.l += 2;
      var formula = parse_XLSBCellParsedFormula(data, end - data.l, opts);
      o[3] = stringify_formula(formula, null/*range*/, cell, opts.supbooks, opts);/* TODO */
    }
    else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.682 BrtMergeCell */
  var parse_BrtMergeCell = parse_UncheckedRfX;
  var write_BrtMergeCell = write_UncheckedRfX;
  /* [MS-XLSB] 2.4.107 BrtBeginMergeCells */
  function write_BrtBeginMergeCells(cnt, o) {
    if(o == null) o = new_buf(4);
    o.write_shift(4, cnt);
    return o;
  }

  /* [MS-XLSB] 2.4.662 BrtHLink */
  function parse_BrtHLink(data, length) {
    var end = data.l + length;
    var rfx = parse_UncheckedRfX(data, 16);
    var relId = parse_XLNullableWideString(data);
    var loc = parse_XLWideString(data);
    var tooltip = parse_XLWideString(data);
    var display = parse_XLWideString(data);
    data.l = end;
    var o = ({rfx:rfx, relId:relId, loc:loc, display:display});
    if(tooltip) o.Tooltip = tooltip;
    return o;
  }
  function write_BrtHLink(l, rId) {
    var o = new_buf(50+4*(l[1].Target.length + (l[1].Tooltip || "").length));
    write_UncheckedRfX({s:decode_cell(l[0]), e:decode_cell(l[0])}, o);
    write_RelID("rId" + rId, o);
    var locidx = l[1].Target.indexOf("#");
    var loc = locidx == -1 ? "" : l[1].Target.slice(locidx+1);
    write_XLWideString(loc || "", o);
    write_XLWideString(l[1].Tooltip || "", o);
    write_XLWideString("", o);
    return o.slice(0, o.l);
  }

  /* [MS-XLSB] 2.4.6 BrtArrFmla */
  function parse_BrtArrFmla(data, length, opts) {
    var end = data.l + length;
    var rfx = parse_RfX(data, 16);
    var fAlwaysCalc = data.read_shift(1);
    var o = [rfx]; o[2] = fAlwaysCalc;
    if(opts.cellFormula) {
      var formula = parse_XLSBArrayParsedFormula(data, end - data.l, opts);
      o[1] = formula;
    } else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.750 BrtShrFmla */
  function parse_BrtShrFmla(data, length, opts) {
    var end = data.l + length;
    var rfx = parse_UncheckedRfX(data, 16);
    var o = [rfx];
    if(opts.cellFormula) {
      var formula = parse_XLSBSharedParsedFormula(data, end - data.l, opts);
      o[1] = formula;
      data.l = end;
    } else data.l = end;
    return o;
  }

  /* [MS-XLSB] 2.4.323 BrtColInfo */
  /* TODO: once XLS ColInfo is set, combine the functions */
  function write_BrtColInfo(C, col, o) {
    if(o == null) o = new_buf(18);
    var p = col_obj_w(C, col);
    o.write_shift(-4, C);
    o.write_shift(-4, C);
    o.write_shift(4, (p.width || 10) * 256);
    o.write_shift(4, 0/*ixfe*/); // style
    var flags = 0;
    if(col.hidden) flags |= 0x01;
    if(typeof p.width == 'number') flags |= 0x02;
    o.write_shift(1, flags); // bit flag
    o.write_shift(1, 0); // bit flag
    return o;
  }

  /* [MS-XLSB] 2.4.678 BrtMargins */
  var BrtMarginKeys = ["left","right","top","bottom","header","footer"];
  function parse_BrtMargins(data) {
    var margins = ({});
    BrtMarginKeys.forEach(function(k) { margins[k] = parse_Xnum(data, 8); });
    return margins;
  }
  function write_BrtMargins(margins, o) {
    if(o == null) o = new_buf(6*8);
    default_margins(margins);
    BrtMarginKeys.forEach(function(k) { write_Xnum((margins)[k], o); });
    return o;
  }

  /* [MS-XLSB] 2.4.299 BrtBeginWsView */
  function parse_BrtBeginWsView(data) {
    var f = data.read_shift(2);
    data.l += 28;
    return { RTL: f & 0x20 };
  }
  function write_BrtBeginWsView(ws, Workbook, o) {
    if(o == null) o = new_buf(30);
    var f = 0x39c;
    if((((Workbook||{}).Views||[])[0]||{}).RTL) f |= 0x20;
    o.write_shift(2, f); // bit flag
    o.write_shift(4, 0);
    o.write_shift(4, 0); // view first row
    o.write_shift(4, 0); // view first col
    o.write_shift(1, 0); // gridline color ICV
    o.write_shift(1, 0);
    o.write_shift(2, 0);
    o.write_shift(2, 100); // zoom scale
    o.write_shift(2, 0);
    o.write_shift(2, 0);
    o.write_shift(2, 0);
    o.write_shift(4, 0); // workbook view id
    return o;
  }

  /* [MS-XLSB] 2.4.309 BrtCellIgnoreEC */
  function write_BrtCellIgnoreEC(ref) {
    var o = new_buf(24);
    o.write_shift(4, 4);
    o.write_shift(4, 1);
    write_UncheckedRfX(ref, o);
    return o;
  }

  /* [MS-XLSB] 2.4.748 BrtSheetProtection */
  function write_BrtSheetProtection(sp, o) {
    if(o == null) o = new_buf(16*4+2);
    o.write_shift(2, sp.password ? crypto_CreatePasswordVerifier_Method1(sp.password) : 0);
    o.write_shift(4, 1); // this record should not be written if no protection
    [
      ["objects",             false], // fObjects
      ["scenarios",           false], // fScenarios
      ["formatCells",          true], // fFormatCells
      ["formatColumns",        true], // fFormatColumns
      ["formatRows",           true], // fFormatRows
      ["insertColumns",        true], // fInsertColumns
      ["insertRows",           true], // fInsertRows
      ["insertHyperlinks",     true], // fInsertHyperlinks
      ["deleteColumns",        true], // fDeleteColumns
      ["deleteRows",           true], // fDeleteRows
      ["selectLockedCells",   false], // fSelLockedCells
      ["sort",                 true], // fSort
      ["autoFilter",           true], // fAutoFilter
      ["pivotTables",          true], // fPivotTables
      ["selectUnlockedCells", false]  // fSelUnlockedCells
    ].forEach(function(n) {
      if(n[1]) o.write_shift(4, sp[n[0]] != null && !sp[n[0]] ? 1 : 0);
      else      o.write_shift(4, sp[n[0]] != null && sp[n[0]] ? 0 : 1);
    });
    return o;
  }

  /* [MS-XLSB] 2.1.7.61 Worksheet */
  function parse_ws_bin(data, _opts, idx, rels, wb, themes, styles) {
    if(!data) return data;
    var opts = _opts || {};
    if(!rels) rels = {'!id':{}};
    if(DENSE != null && opts.dense == null) opts.dense = DENSE;
    var s = (opts.dense ? [] : {});

    var ref;
    var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };

    var pass = false, end = false;
    var row, p, cf, R, C, addr, sstr, rr, cell;
    var merges = [];
    opts.biff = 12;
    opts['!row'] = 0;

    var ai = 0, af = false;

    var arrayf = [];
    var sharedf = {};
    var supbooks = opts.supbooks || wb.supbooks || ([[]]);
    supbooks.sharedf = sharedf;
    supbooks.arrayf = arrayf;
    supbooks.SheetNames = wb.SheetNames || wb.Sheets.map(function(x) { return x.name; });
    if(!opts.supbooks) {
      opts.supbooks = supbooks;
      if(wb.Names) for(var i = 0; i < wb.Names.length; ++i) supbooks[0][i+1] = wb.Names[i];
    }

    var colinfo = [], rowinfo = [];
    var seencol = false;

    recordhopper(data, function ws_parse(val, R_n, RT) {
      if(end) return;
      switch(RT) {
        case 0x0094: /* 'BrtWsDim' */
          ref = val; break;
        case 0x0000: /* 'BrtRowHdr' */
          row = val;
          if(opts.sheetRows && opts.sheetRows <= row.r) end=true;
          rr = encode_row(R = row.r);
          opts['!row'] = row.r;
          if(val.hidden || val.hpt || val.level != null) {
            if(val.hpt) val.hpx = pt2px(val.hpt);
            rowinfo[val.r] = val;
          }
          break;

        case 0x0002: /* 'BrtCellRk' */
        case 0x0003: /* 'BrtCellError' */
        case 0x0004: /* 'BrtCellBool' */
        case 0x0005: /* 'BrtCellReal' */
        case 0x0006: /* 'BrtCellSt' */
        case 0x0007: /* 'BrtCellIsst' */
        case 0x0008: /* 'BrtFmlaString' */
        case 0x0009: /* 'BrtFmlaNum' */
        case 0x000A: /* 'BrtFmlaBool' */
        case 0x000B: /* 'BrtFmlaError' */
          p = ({t:val[2]});
          switch(val[2]) {
            case 'n': p.v = val[1]; break;
            case 's': sstr = strs[val[1]]; p.v = sstr.t; p.r = sstr.r; break;
            case 'b': p.v = val[1] ? true : false; break;
            case 'e': p.v = val[1]; if(opts.cellText !== false) p.w = BErr[p.v]; break;
            case 'str': p.t = 's'; p.v = val[1]; break;
          }
          if((cf = styles.CellXf[val[0].iStyleRef])) safe_format(p,cf.numFmtId,null,opts, themes, styles);
          C = val[0].c;
          if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
          else s[encode_col(C) + rr] = p;
          if(opts.cellFormula) {
            af = false;
            for(ai = 0; ai < arrayf.length; ++ai) {
              var aii = arrayf[ai];
              if(row.r >= aii[0].s.r && row.r <= aii[0].e.r)
                if(C >= aii[0].s.c && C <= aii[0].e.c) {
                  p.F = encode_range(aii[0]); af = true;
                }
            }
            if(!af && val.length > 3) p.f = val[3];
          }
          if(refguess.s.r > row.r) refguess.s.r = row.r;
          if(refguess.s.c > C) refguess.s.c = C;
          if(refguess.e.r < row.r) refguess.e.r = row.r;
          if(refguess.e.c < C) refguess.e.c = C;
          if(opts.cellDates && cf && p.t == 'n' && SSF.is_date(SSF._table[cf.numFmtId])) {
            var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
          }
          break;

        case 0x0001: /* 'BrtCellBlank' */
          if(!opts.sheetStubs || pass) break;
          p = ({t:'z',v:undefined});
          C = val[0].c;
          if(opts.dense) { if(!s[R]) s[R] = []; s[R][C] = p; }
          else s[encode_col(C) + rr] = p;
          if(refguess.s.r > row.r) refguess.s.r = row.r;
          if(refguess.s.c > C) refguess.s.c = C;
          if(refguess.e.r < row.r) refguess.e.r = row.r;
          if(refguess.e.c < C) refguess.e.c = C;
          break;

        case 0x00B0: /* 'BrtMergeCell' */
          merges.push(val); break;

        case 0x01EE: /* 'BrtHLink' */
          var rel = rels['!id'][val.relId];
          if(rel) {
            val.Target = rel.Target;
            if(val.loc) val.Target += "#"+val.loc;
            val.Rel = rel;
          } else if(val.relId == '') {
            val.Target = "#" + val.loc;
          }
          for(R=val.rfx.s.r;R<=val.rfx.e.r;++R) for(C=val.rfx.s.c;C<=val.rfx.e.c;++C) {
            if(opts.dense) {
              if(!s[R]) s[R] = [];
              if(!s[R][C]) s[R][C] = {t:'z',v:undefined};
              s[R][C].l = val;
            } else {
              addr = encode_cell({c:C,r:R});
              if(!s[addr]) s[addr] = {t:'z',v:undefined};
              s[addr].l = val;
            }
          }
          break;

        case 0x01AA: /* 'BrtArrFmla' */
          if(!opts.cellFormula) break;
          arrayf.push(val);
          cell = ((opts.dense ? s[R][C] : s[encode_col(C) + rr]));
          cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
          cell.F = encode_range(val[0]);
          break;
        case 0x01AB: /* 'BrtShrFmla' */
          if(!opts.cellFormula) break;
          sharedf[encode_cell(val[0].s)] = val[1];
          cell = (opts.dense ? s[R][C] : s[encode_col(C) + rr]);
          cell.f = stringify_formula(val[1], refguess, {r:row.r, c:C}, supbooks, opts);
          break;

        /* identical to 'ColInfo' in XLS */
        case 0x003C: /* 'BrtColInfo' */
          if(!opts.cellStyles) break;
          while(val.e >= val.s) {
            colinfo[val.e--] = { width: val.w/256, hidden: !!(val.flags & 0x01) };
            if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
            process_col(colinfo[val.e+1]);
          }
          break;

        case 0x00A1: /* 'BrtBeginAFilter' */
          s['!autofilter'] = { ref:encode_range(val) };
          break;

        case 0x01DC: /* 'BrtMargins' */
          s['!margins'] = val;
          break;

        case 0x0093: /* 'BrtWsProp' */
          if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
          if(val.name) wb.Sheets[idx].CodeName = val.name;
          break;

        case 0x0089: /* 'BrtBeginWsView' */
          if(!wb.Views) wb.Views = [{}];
          if(!wb.Views[0]) wb.Views[0] = {};
          if(val.RTL) wb.Views[0].RTL = true;
          break;

        case 0x01E5: /* 'BrtWsFmtInfo' */
          break;
        case 0x00AF: /* 'BrtAFilterDateGroupItem' */
        case 0x0284: /* 'BrtActiveX' */
        case 0x0271: /* 'BrtBigName' */
        case 0x0232: /* 'BrtBkHim' */
        case 0x018C: /* 'BrtBrk' */
        case 0x0458: /* 'BrtCFIcon' */
        case 0x047A: /* 'BrtCFRuleExt' */
        case 0x01D7: /* 'BrtCFVO' */
        case 0x041A: /* 'BrtCFVO14' */
        case 0x0289: /* 'BrtCellIgnoreEC' */
        case 0x0451: /* 'BrtCellIgnoreEC14' */
        case 0x0031: /* 'BrtCellMeta' */
        case 0x024D: /* 'BrtCellSmartTagProperty' */
        case 0x025F: /* 'BrtCellWatch' */
        case 0x0234: /* 'BrtColor' */
        case 0x041F: /* 'BrtColor14' */
        case 0x00A8: /* 'BrtColorFilter' */
        case 0x00AE: /* 'BrtCustomFilter' */
        case 0x049C: /* 'BrtCustomFilter14' */
        case 0x01F3: /* 'BrtDRef' */
        case 0x0040: /* 'BrtDVal' */
        case 0x041D: /* 'BrtDVal14' */
        case 0x0226: /* 'BrtDrawing' */
        case 0x00AB: /* 'BrtDynamicFilter' */
        case 0x00A7: /* 'BrtFilter' */
        case 0x0499: /* 'BrtFilter14' */
        case 0x00A9: /* 'BrtIconFilter' */
        case 0x049D: /* 'BrtIconFilter14' */
        case 0x0227: /* 'BrtLegacyDrawing' */
        case 0x0228: /* 'BrtLegacyDrawingHF' */
        case 0x0295: /* 'BrtListPart' */
        case 0x027F: /* 'BrtOleObject' */
        case 0x01DE: /* 'BrtPageSetup' */
        case 0x0097: /* 'BrtPane' */
        case 0x0219: /* 'BrtPhoneticInfo' */
        case 0x01DD: /* 'BrtPrintOptions' */
        case 0x0218: /* 'BrtRangeProtection' */
        case 0x044F: /* 'BrtRangeProtection14' */
        case 0x02A8: /* 'BrtRangeProtectionIso' */
        case 0x0450: /* 'BrtRangeProtectionIso14' */
        case 0x0400: /* 'BrtRwDescent' */
        case 0x0098: /* 'BrtSel' */
        case 0x0297: /* 'BrtSheetCalcProp' */
        case 0x0217: /* 'BrtSheetProtection' */
        case 0x02A6: /* 'BrtSheetProtectionIso' */
        case 0x01F8: /* 'BrtSlc' */
        case 0x0413: /* 'BrtSparkline' */
        case 0x01AC: /* 'BrtTable' */
        case 0x00AA: /* 'BrtTop10Filter' */
        case 0x0C00: /* 'BrtUid' */
        case 0x0032: /* 'BrtValueMeta' */
        case 0x0816: /* 'BrtWebExtension' */
        case 0x0415: /* 'BrtWsFmtInfoEx14' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;
        case 0x0025: /* 'BrtACBegin' */ break;
        case 0x0026: /* 'BrtACEnd' */ break;

        default:
          if((R_n||"").indexOf("Begin") > 0){/* empty */}
          else if((R_n||"").indexOf("End") > 0){/* empty */}
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    }, opts);

    delete opts.supbooks;
    delete opts['!row'];

    if(!s["!ref"] && (refguess.s.r < 2000000 || ref && (ref.e.r > 0 || ref.e.c > 0 || ref.s.r > 0 || ref.s.c > 0))) s["!ref"] = encode_range(ref || refguess);
    if(opts.sheetRows && s["!ref"]) {
      var tmpref = safe_decode_range(s["!ref"]);
      if(opts.sheetRows <= +tmpref.e.r) {
        tmpref.e.r = opts.sheetRows - 1;
        if(tmpref.e.r > refguess.e.r) tmpref.e.r = refguess.e.r;
        if(tmpref.e.r < tmpref.s.r) tmpref.s.r = tmpref.e.r;
        if(tmpref.e.c > refguess.e.c) tmpref.e.c = refguess.e.c;
        if(tmpref.e.c < tmpref.s.c) tmpref.s.c = tmpref.e.c;
        s["!fullref"] = s["!ref"];
        s["!ref"] = encode_range(tmpref);
      }
    }
    if(merges.length > 0) s["!merges"] = merges;
    if(colinfo.length > 0) s["!cols"] = colinfo;
    if(rowinfo.length > 0) s["!rows"] = rowinfo;
    return s;
  }

  /* TODO: something useful -- this is a stub */
  function write_ws_bin_cell(ba, cell, R, C, opts, ws) {
    if(cell.v === undefined) return "";
    var vv = "";
    switch(cell.t) {
      case 'b': vv = cell.v ? "1" : "0"; break;
      case 'd': // no BrtCellDate :(
        cell = dup(cell);
        cell.z = cell.z || SSF._table[14];
        cell.v = datenum(parseDate(cell.v)); cell.t = 'n';
        break;
      /* falls through */
      case 'n': case 'e': vv = ''+cell.v; break;
      default: vv = cell.v; break;
    }
    var o = ({r:R, c:C});
    /* TODO: cell style */
    o.s = get_cell_style(opts.cellXfs, cell, opts);
    if(cell.l) ws['!links'].push([encode_cell(o), cell.l]);
    if(cell.c) ws['!comments'].push([encode_cell(o), cell.c]);
    switch(cell.t) {
      case 's': case 'str':
        if(opts.bookSST) {
          vv = get_sst_id(opts.Strings, (cell.v), opts.revStrings);
          o.t = "s"; o.v = vv;
          write_record(ba, "BrtCellIsst", write_BrtCellIsst(cell, o));
        } else {
          o.t = "str";
          write_record(ba, "BrtCellSt", write_BrtCellSt(cell, o));
        }
        return;
      case 'n':
        /* TODO: determine threshold for Real vs RK */
        if(cell.v == (cell.v | 0) && cell.v > -1000 && cell.v < 1000) write_record(ba, "BrtCellRk", write_BrtCellRk(cell, o));
        else write_record(ba, "BrtCellReal", write_BrtCellReal(cell, o));
        return;
      case 'b':
        o.t = "b";
        write_record(ba, "BrtCellBool", write_BrtCellBool(cell, o));
        return;
      case 'e': /* TODO: error */ o.t = "e"; break;
    }
    write_record(ba, "BrtCellBlank", write_BrtCellBlank(cell, o));
  }

  function write_CELLTABLE(ba, ws, idx, opts) {
    var range = safe_decode_range(ws['!ref'] || "A1"), ref, rr = "", cols = [];
    write_record(ba, 'BrtBeginSheetData');
    var dense = Array.isArray(ws);
    var cap = range.e.r;
    if(ws['!rows']) cap = Math.max(range.e.r, ws['!rows'].length - 1);
    for(var R = range.s.r; R <= cap; ++R) {
      rr = encode_row(R);
      /* [ACCELLTABLE] */
      /* BrtRowHdr */
      write_row_header(ba, ws, range, R);
      if(R <= range.e.r) for(var C = range.s.c; C <= range.e.c; ++C) {
        /* *16384CELL */
        if(R === range.s.r) cols[C] = encode_col(C);
        ref = cols[C] + rr;
        var cell = dense ? (ws[R]||[])[C] : ws[ref];
        if(!cell) continue;
        /* write cell */
        write_ws_bin_cell(ba, cell, R, C, opts, ws);
      }
    }
    write_record(ba, 'BrtEndSheetData');
  }

  function write_MERGECELLS(ba, ws) {
    if(!ws || !ws['!merges']) return;
    write_record(ba, 'BrtBeginMergeCells', write_BrtBeginMergeCells(ws['!merges'].length));
    ws['!merges'].forEach(function(m) { write_record(ba, 'BrtMergeCell', write_BrtMergeCell(m)); });
    write_record(ba, 'BrtEndMergeCells');
  }

  function write_COLINFOS(ba, ws) {
    if(!ws || !ws['!cols']) return;
    write_record(ba, 'BrtBeginColInfos');
    ws['!cols'].forEach(function(m, i) { if(m) write_record(ba, 'BrtColInfo', write_BrtColInfo(i, m)); });
    write_record(ba, 'BrtEndColInfos');
  }

  function write_IGNOREECS(ba, ws) {
    if(!ws || !ws['!ref']) return;
    write_record(ba, 'BrtBeginCellIgnoreECs');
    write_record(ba, 'BrtCellIgnoreEC', write_BrtCellIgnoreEC(safe_decode_range(ws['!ref'])));
    write_record(ba, 'BrtEndCellIgnoreECs');
  }

  function write_HLINKS(ba, ws, rels) {
    /* *BrtHLink */
    ws['!links'].forEach(function(l) {
      if(!l[1].Target) return;
      var rId = add_rels(rels, -1, l[1].Target.replace(/#.*$/, ""), RELS.HLINK);
      write_record(ba, "BrtHLink", write_BrtHLink(l, rId));
    });
    delete ws['!links'];
  }
  function write_LEGACYDRAWING(ba, ws, idx, rels) {
    /* [BrtLegacyDrawing] */
    if(ws['!comments'].length > 0) {
      var rId = add_rels(rels, -1, "../drawings/vmlDrawing" + (idx+1) + ".vml", RELS.VML);
      write_record(ba, "BrtLegacyDrawing", write_RelID("rId" + rId));
      ws['!legacy'] = rId;
    }
  }

  function write_AUTOFILTER(ba, ws) {
    if(!ws['!autofilter']) return;
    write_record(ba, "BrtBeginAFilter", write_UncheckedRfX(safe_decode_range(ws['!autofilter'].ref)));
    /* *FILTERCOLUMN */
    /* [SORTSTATE] */
    /* BrtEndAFilter */
    write_record(ba, "BrtEndAFilter");
  }

  function write_WSVIEWS2(ba, ws, Workbook) {
    write_record(ba, "BrtBeginWsViews");
    { /* 1*WSVIEW2 */
      /* [ACUID] */
      write_record(ba, "BrtBeginWsView", write_BrtBeginWsView(ws, Workbook));
      /* [BrtPane] */
      /* *4BrtSel */
      /* *4SXSELECT */
      /* *FRT */
      write_record(ba, "BrtEndWsView");
    }
    /* *FRT */
    write_record(ba, "BrtEndWsViews");
  }

  function write_WSFMTINFO() {
    /* [ACWSFMTINFO] */
    //write_record(ba, "BrtWsFmtInfo", write_BrtWsFmtInfo(ws));
  }

  function write_SHEETPROTECT(ba, ws) {
    if(!ws['!protect']) return;
    /* [BrtSheetProtectionIso] */
    write_record(ba, "BrtSheetProtection", write_BrtSheetProtection(ws['!protect']));
  }

  function write_ws_bin(idx, opts, wb, rels) {
    var ba = buf_array();
    var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {};
    var c = s; try { if(wb && wb.Workbook) c = wb.Workbook.Sheets[idx].CodeName || c; } catch(e) {}
    var r = safe_decode_range(ws['!ref'] || "A1");
    if(r.e.c > 0x3FFF || r.e.r > 0xFFFFF) {
      if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:XFD1048576");
      r.e.c = Math.min(r.e.c, 0x3FFF);
      r.e.r = Math.min(r.e.c, 0xFFFFF);
    }
    ws['!links'] = [];
    /* passed back to write_zip and removed there */
    ws['!comments'] = [];
    write_record(ba, "BrtBeginSheet");
    if(wb.vbaraw) write_record(ba, "BrtWsProp", write_BrtWsProp(c));
    write_record(ba, "BrtWsDim", write_BrtWsDim(r));
    write_WSVIEWS2(ba, ws, wb.Workbook);
    write_WSFMTINFO(ba, ws);
    write_COLINFOS(ba, ws, idx, opts, wb);
    write_CELLTABLE(ba, ws, idx, opts, wb);
    /* [BrtSheetCalcProp] */
    write_SHEETPROTECT(ba, ws);
    /* *([BrtRangeProtectionIso] BrtRangeProtection) */
    /* [SCENMAN] */
    write_AUTOFILTER(ba, ws);
    /* [SORTSTATE] */
    /* [DCON] */
    /* [USERSHVIEWS] */
    write_MERGECELLS(ba, ws);
    /* [BrtPhoneticInfo] */
    /* *CONDITIONALFORMATTING */
    /* [DVALS] */
    write_HLINKS(ba, ws, rels);
    /* [BrtPrintOptions] */
    if(ws['!margins']) write_record(ba, "BrtMargins", write_BrtMargins(ws['!margins']));
    /* [BrtPageSetup] */
    /* [HEADERFOOTER] */
    /* [RWBRK] */
    /* [COLBRK] */
    /* *BrtBigName */
    /* [CELLWATCHES] */
    if(!opts || opts.ignoreEC || (opts.ignoreEC == (void 0))) write_IGNOREECS(ba, ws);
    /* [SMARTTAGS] */
    /* [BrtDrawing] */
    write_LEGACYDRAWING(ba, ws, idx, rels);
    /* [BrtLegacyDrawingHF] */
    /* [BrtBkHim] */
    /* [OLEOBJECTS] */
    /* [ACTIVEXCONTROLS] */
    /* [WEBPUBITEMS] */
    /* [LISTPARTS] */
    /* FRTWORKSHEET */
    write_record(ba, "BrtEndSheet");
    return ba.end();
  }
  function parse_numCache(data) {
    var col = [];

    /* 21.2.2.150 pt CT_NumVal */
    (data.match(/<c:pt idx="(\d*)">(.*?)<\/c:pt>/mg)||[]).forEach(function(pt) {
      var q = pt.match(/<c:pt idx="(\d*?)"><c:v>(.*)<\/c:v><\/c:pt>/);
      if(!q) return;
      col[+q[1]] = +q[2];
    });

    /* 21.2.2.71 formatCode CT_Xstring */
    var nf = unescapexml((data.match(/<c:formatCode>([\s\S]*?)<\/c:formatCode>/) || ["","General"])[1]);

    return [col, nf];
  }

  /* 21.2 DrawingML - Charts */
  function parse_chart(data, name, opts, rels, wb, csheet) {
    var cs = ((csheet || {"!type":"chart"}));
    if(!data) return csheet;
    /* 21.2.2.27 chart CT_Chart */

    var C = 0, R = 0, col = "A";
    var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };

    /* 21.2.2.120 numCache CT_NumData */
    (data.match(/<c:numCache>[\s\S]*?<\/c:numCache>/gm)||[]).forEach(function(nc) {
      var cache = parse_numCache(nc);
      refguess.s.r = refguess.s.c = 0;
      refguess.e.c = C;
      col = encode_col(C);
      cache[0].forEach(function(n,i) {
        cs[col + encode_row(i)] = {t:'n', v:n, z:cache[1] };
        R = i;
      });
      if(refguess.e.r < R) refguess.e.r = R;
      ++C;
    });
    if(C > 0) cs["!ref"] = encode_range(refguess);
    return cs;
  }
  RELS.CS = "http://schemas.openxmlformats.org/officeDocument/2006/relationships/chartsheet";

  var CS_XML_ROOT = writextag('chartsheet', null, {
    'xmlns': XMLNS.main[0],
    'xmlns:r': XMLNS.r
  });

  /* 18.3 Worksheets also covers Chartsheets */
  function parse_cs_xml(data, opts, idx, rels, wb) {
    if(!data) return data;
    /* 18.3.1.12 chartsheet CT_ChartSheet */
    if(!rels) rels = {'!id':{}};
    var s = {'!type':"chart", '!chart':null, '!rel':""};
    var m;

    /* 18.3.1.83 sheetPr CT_ChartsheetPr */
    var sheetPr = data.match(sheetprregex);
    if(sheetPr) parse_ws_xml_sheetpr(sheetPr[0], s, wb, idx);

    /* 18.3.1.36 drawing CT_Drawing */
    if((m = data.match(/drawing r:id="(.*?)"/))) s['!rel'] = m[1];

    if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
    return s;
  }
  function write_cs_xml(idx, opts, wb, rels) {
    var o = [XML_HEADER, CS_XML_ROOT];
    o[o.length] = writextag("drawing", null, {"r:id": "rId1"});
    add_rels(rels, -1, "../drawings/drawing" + (idx+1) + ".xml", RELS.DRAW);
    if(o.length>2) { o[o.length] = ('</chartsheet>'); o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }

  /* [MS-XLSB] 2.4.331 BrtCsProp */
  function parse_BrtCsProp(data, length) {
    data.l += 10;
    var name = parse_XLWideString(data, length - 10);
    return { name: name };
  }

  /* [MS-XLSB] 2.1.7.7 Chart Sheet */
  function parse_cs_bin(data, opts, idx, rels, wb) {
    if(!data) return data;
    if(!rels) rels = {'!id':{}};
    var s = {'!type':"chart", '!chart':null, '!rel':""};
    var state = [];
    var pass = false;
    recordhopper(data, function cs_parse(val, R_n, RT) {
      switch(RT) {

        case 0x0226: /* 'BrtDrawing' */
          s['!rel'] = val; break;

        case 0x028B: /* 'BrtCsProp' */
          if(!wb.Sheets[idx]) wb.Sheets[idx] = {};
          if(val.name) wb.Sheets[idx].CodeName = val.name;
          break;

        case 0x0232: /* 'BrtBkHim' */
        case 0x028C: /* 'BrtCsPageSetup' */
        case 0x029D: /* 'BrtCsProtection' */
        case 0x02A7: /* 'BrtCsProtectionIso' */
        case 0x0227: /* 'BrtLegacyDrawing' */
        case 0x0228: /* 'BrtLegacyDrawingHF' */
        case 0x01DC: /* 'BrtMargins' */
        case 0x0C00: /* 'BrtUid' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          pass = false; break;
        case 0x0025: /* 'BrtACBegin' */
          state.push(R_n); break;
        case 0x0026: /* 'BrtACEnd' */
          state.pop(); break;

        default:
          if((R_n||"").indexOf("Begin") > 0) state.push(R_n);
          else if((R_n||"").indexOf("End") > 0) state.pop();
          else if(!pass || opts.WTF) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    }, opts);

    if(rels['!id'][s['!rel']]) s['!chart'] = rels['!id'][s['!rel']];
    return s;
  }
  function write_cs_bin() {
    var ba = buf_array();
    write_record(ba, "BrtBeginSheet");
    /* [BrtCsProp] */
    /* CSVIEWS */
    /* [[BrtCsProtectionIso] BrtCsProtection] */
    /* [USERCSVIEWS] */
    /* [BrtMargins] */
    /* [BrtCsPageSetup] */
    /* [HEADERFOOTER] */
    /* BrtDrawing */
    /* [BrtLegacyDrawing] */
    /* [BrtLegacyDrawingHF] */
    /* [BrtBkHim] */
    /* [WEBPUBITEMS] */
    /* FRTCHARTSHEET */
    write_record(ba, "BrtEndSheet");
    return ba.end();
  }
  /* 18.2.28 (CT_WorkbookProtection) Defaults */
  var WBPropsDef = [
    ['allowRefreshQuery',           false, "bool"],
    ['autoCompressPictures',        true,  "bool"],
    ['backupFile',                  false, "bool"],
    ['checkCompatibility',          false, "bool"],
    ['CodeName',                    ''],
    ['date1904',                    false, "bool"],
    ['defaultThemeVersion',         0,      "int"],
    ['filterPrivacy',               false, "bool"],
    ['hidePivotFieldList',          false, "bool"],
    ['promptedSolutions',           false, "bool"],
    ['publishItems',                false, "bool"],
    ['refreshAllConnections',       false, "bool"],
    ['saveExternalLinkValues',      true,  "bool"],
    ['showBorderUnselectedTables',  true,  "bool"],
    ['showInkAnnotation',           true,  "bool"],
    ['showObjects',                 'all'],
    ['showPivotChartFilter',        false, "bool"],
    ['updateLinks', 'userSet']
  ];

  /* 18.2.30 (CT_BookView) Defaults */
  var WBViewDef = [
    ['activeTab',                   0,      "int"],
    ['autoFilterDateGrouping',      true,  "bool"],
    ['firstSheet',                  0,      "int"],
    ['minimized',                   false, "bool"],
    ['showHorizontalScroll',        true,  "bool"],
    ['showSheetTabs',               true,  "bool"],
    ['showVerticalScroll',          true,  "bool"],
    ['tabRatio',                    600,    "int"],
    ['visibility',                  'visible']
    //window{Height,Width}, {x,y}Window
  ];

  /* 18.2.19 (CT_Sheet) Defaults */
  var SheetDef = [
    //['state', 'visible']
  ];

  /* 18.2.2  (CT_CalcPr) Defaults */
  var CalcPrDef = [
    ['calcCompleted', 'true'],
    ['calcMode', 'auto'],
    ['calcOnSave', 'true'],
    ['concurrentCalc', 'true'],
    ['fullCalcOnLoad', 'false'],
    ['fullPrecision', 'true'],
    ['iterate', 'false'],
    ['iterateCount', '100'],
    ['iterateDelta', '0.001'],
    ['refMode', 'A1']
  ];

  /* 18.2.3 (CT_CustomWorkbookView) Defaults */
  /*var CustomWBViewDef = [
	['autoUpdate', 'false'],
	['changesSavedWin', 'false'],
	['includeHiddenRowCol', 'true'],
	['includePrintSettings', 'true'],
	['maximized', 'false'],
	['minimized', 'false'],
	['onlySync', 'false'],
	['personalView', 'false'],
	['showComments', 'commIndicator'],
	['showFormulaBar', 'true'],
	['showHorizontalScroll', 'true'],
	['showObjects', 'all'],
	['showSheetTabs', 'true'],
	['showStatusbar', 'true'],
	['showVerticalScroll', 'true'],
	['tabRatio', '600'],
	['xWindow', '0'],
	['yWindow', '0']
];*/

  function push_defaults_array(target, defaults) {
    for(var j = 0; j != target.length; ++j) { var w = target[j];
      for(var i=0; i != defaults.length; ++i) { var z = defaults[i];
        if(w[z[0]] == null) w[z[0]] = z[1];
        else switch(z[2]) {
          case "bool": if(typeof w[z[0]] == "string") w[z[0]] = parsexmlbool(w[z[0]]); break;
          case "int": if(typeof w[z[0]] == "string") w[z[0]] = parseInt(w[z[0]], 10); break;
        }
      }
    }
  }
  function push_defaults(target, defaults) {
    for(var i = 0; i != defaults.length; ++i) { var z = defaults[i];
      if(target[z[0]] == null) target[z[0]] = z[1];
      else switch(z[2]) {
        case "bool": if(typeof target[z[0]] == "string") target[z[0]] = parsexmlbool(target[z[0]]); break;
        case "int": if(typeof target[z[0]] == "string") target[z[0]] = parseInt(target[z[0]], 10); break;
      }
    }
  }

  function parse_wb_defaults(wb) {
    push_defaults(wb.WBProps, WBPropsDef);
    push_defaults(wb.CalcPr, CalcPrDef);

    push_defaults_array(wb.WBView, WBViewDef);
    push_defaults_array(wb.Sheets, SheetDef);

    _ssfopts.date1904 = parsexmlbool(wb.WBProps.date1904);
  }

  function safe1904(wb) {
    /* TODO: store date1904 somewhere else */
    if(!wb.Workbook) return "false";
    if(!wb.Workbook.WBProps) return "false";
    return parsexmlbool(wb.Workbook.WBProps.date1904) ? "true" : "false";
  }

  var badchars = "][*?\/\\".split("");
  function check_ws_name(n, safe) {
    if(n.length > 31) { if(safe) return false; throw new Error("Sheet names cannot exceed 31 chars"); }
    var _good = true;
    badchars.forEach(function(c) {
      if(n.indexOf(c) == -1) return;
      if(!safe) throw new Error("Sheet name cannot contain : \\ / ? * [ ]");
      _good = false;
    });
    return _good;
  }
  function check_wb_names(N, S, codes) {
    N.forEach(function(n,i) {
      check_ws_name(n);
      for(var j = 0; j < i; ++j) if(n == N[j]) throw new Error("Duplicate Sheet Name: " + n);
      if(codes) {
        var cn = (S && S[i] && S[i].CodeName) || n;
        if(cn.charCodeAt(0) == 95 && cn.length > 22) throw new Error("Bad Code Name: Worksheet" + cn);
      }
    });
  }
  function check_wb(wb) {
    if(!wb || !wb.SheetNames || !wb.Sheets) throw new Error("Invalid Workbook");
    if(!wb.SheetNames.length) throw new Error("Workbook is empty");
    var Sheets = (wb.Workbook && wb.Workbook.Sheets) || [];
    check_wb_names(wb.SheetNames, Sheets, !!wb.vbaraw);
    for(var i = 0; i < wb.SheetNames.length; ++i) check_ws(wb.Sheets[wb.SheetNames[i]], wb.SheetNames[i], i);
    /* TODO: validate workbook */
  }
  /* 18.2 Workbook */
  var wbnsregex = /<\w+:workbook/;
  function parse_wb_xml(data, opts) {
    if(!data) throw new Error("Could not find file");
    var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, Names:[], xmlns: "" };
    var pass = false, xmlns = "xmlns";
    var dname = {}, dnstart = 0;
    data.replace(tagregex, function xml_wb(x, idx) {
      var y = parsexmltag(x);
      switch(strip_ns(y[0])) {
        case '<?xml': break;

        /* 18.2.27 workbook CT_Workbook 1 */
        case '<workbook':
          if(x.match(wbnsregex)) xmlns = "xmlns" + x.match(/<(\w+):/)[1];
          wb.xmlns = y[xmlns];
          break;
        case '</workbook>': break;

        /* 18.2.13 fileVersion CT_FileVersion ? */
        case '<fileVersion': delete y[0]; wb.AppVersion = y; break;
        case '<fileVersion/>': case '</fileVersion>': break;

        /* 18.2.12 fileSharing CT_FileSharing ? */
        case '<fileSharing': case '<fileSharing/>': break;

        /* 18.2.28 workbookPr CT_WorkbookPr ? */
        case '<workbookPr':
        case '<workbookPr/>':
          WBPropsDef.forEach(function(w) {
            if(y[w[0]] == null) return;
            switch(w[2]) {
              case "bool": wb.WBProps[w[0]] = parsexmlbool(y[w[0]]); break;
              case "int": wb.WBProps[w[0]] = parseInt(y[w[0]], 10); break;
              default: wb.WBProps[w[0]] = y[w[0]];
            }
          });
          if(y.codeName) wb.WBProps.CodeName = y.codeName;
          break;
        case '</workbookPr>': break;

        /* 18.2.29 workbookProtection CT_WorkbookProtection ? */
        case '<workbookProtection': break;
        case '<workbookProtection/>': break;

        /* 18.2.1  bookViews CT_BookViews ? */
        case '<bookViews': case '<bookViews>': case '</bookViews>': break;
        /* 18.2.30   workbookView CT_BookView + */
        case '<workbookView': case '<workbookView/>': delete y[0]; wb.WBView.push(y); break;
        case '</workbookView>': break;

        /* 18.2.20 sheets CT_Sheets 1 */
        case '<sheets': case '<sheets>': case '</sheets>': break; // aggregate sheet
        /* 18.2.19   sheet CT_Sheet + */
        case '<sheet':
          switch(y.state) {
            case "hidden": y.Hidden = 1; break;
            case "veryHidden": y.Hidden = 2; break;
            default: y.Hidden = 0;
          }
          delete y.state;
          y.name = unescapexml(utf8read(y.name));
          delete y[0]; wb.Sheets.push(y); break;
        case '</sheet>': break;

        /* 18.2.15 functionGroups CT_FunctionGroups ? */
        case '<functionGroups': case '<functionGroups/>': break;
        /* 18.2.14   functionGroup CT_FunctionGroup + */
        case '<functionGroup': break;

        /* 18.2.9  externalReferences CT_ExternalReferences ? */
        case '<externalReferences': case '</externalReferences>': case '<externalReferences>': break;
        /* 18.2.8    externalReference CT_ExternalReference + */
        case '<externalReference': break;

        /* 18.2.6  definedNames CT_DefinedNames ? */
        case '<definedNames/>': break;
        case '<definedNames>': case '<definedNames': pass=true; break;
        case '</definedNames>': pass=false; break;
        /* 18.2.5    definedName CT_DefinedName + */
        case '<definedName': {
          dname = {};
          dname.Name = utf8read(y.name);
          if(y.comment) dname.Comment = y.comment;
          if(y.localSheetId) dname.Sheet = +y.localSheetId;
          if(parsexmlbool(y.hidden||"0")) dname.Hidden = true;
          dnstart = idx + x.length;
        }	break;
        case '</definedName>': {
          dname.Ref = unescapexml(utf8read(data.slice(dnstart, idx)));
          wb.Names.push(dname);
        } break;
        case '<definedName/>': break;

        /* 18.2.2  calcPr CT_CalcPr ? */
        case '<calcPr': delete y[0]; wb.CalcPr = y; break;
        case '<calcPr/>': delete y[0]; wb.CalcPr = y; break;
        case '</calcPr>': break;

        /* 18.2.16 oleSize CT_OleSize ? (ref required) */
        case '<oleSize': break;

        /* 18.2.4  customWorkbookViews CT_CustomWorkbookViews ? */
        case '<customWorkbookViews>': case '</customWorkbookViews>': case '<customWorkbookViews': break;
        /* 18.2.3    customWorkbookView CT_CustomWorkbookView + */
        case '<customWorkbookView': case '</customWorkbookView>': break;

        /* 18.2.18 pivotCaches CT_PivotCaches ? */
        case '<pivotCaches>': case '</pivotCaches>': case '<pivotCaches': break;
        /* 18.2.17 pivotCache CT_PivotCache ? */
        case '<pivotCache': break;

        /* 18.2.21 smartTagPr CT_SmartTagPr ? */
        case '<smartTagPr': case '<smartTagPr/>': break;

        /* 18.2.23 smartTagTypes CT_SmartTagTypes ? */
        case '<smartTagTypes': case '<smartTagTypes>': case '</smartTagTypes>': break;
        /* 18.2.22   smartTagType CT_SmartTagType ? */
        case '<smartTagType': break;

        /* 18.2.24 webPublishing CT_WebPublishing ? */
        case '<webPublishing': case '<webPublishing/>': break;

        /* 18.2.11 fileRecoveryPr CT_FileRecoveryPr ? */
        case '<fileRecoveryPr': case '<fileRecoveryPr/>': break;

        /* 18.2.26 webPublishObjects CT_WebPublishObjects ? */
        case '<webPublishObjects>': case '<webPublishObjects': case '</webPublishObjects>': break;
        /* 18.2.25 webPublishObject CT_WebPublishObject ? */
        case '<webPublishObject': break;

        /* 18.2.10 extLst CT_ExtensionList ? */
        case '<extLst': case '<extLst>': case '</extLst>': case '<extLst/>': break;
        /* 18.2.7    ext CT_Extension + */
        case '<ext': pass=true; break; //TODO: check with versions of excel
        case '</ext>': pass=false; break;

        /* Others */
        case '<ArchID': break;
        case '<AlternateContent':
        case '<AlternateContent>': pass=true; break;
        case '</AlternateContent>': pass=false; break;

        /* TODO */
        case '<revisionPtr': break;

        default: if(!pass && opts.WTF) throw new Error('unrecognized ' + y[0] + ' in workbook');
      }
      return x;
    });
    if(XMLNS.main.indexOf(wb.xmlns) === -1) throw new Error("Unknown Namespace: " + wb.xmlns);

    parse_wb_defaults(wb);

    return wb;
  }

  var WB_XML_ROOT = writextag('workbook', null, {
    'xmlns': XMLNS.main[0],
    //'xmlns:mx': XMLNS.mx,
    //'xmlns:s': XMLNS.main[0],
    'xmlns:r': XMLNS.r
  });

  function write_wb_xml(wb) {
    var o = [XML_HEADER];
    o[o.length] = WB_XML_ROOT;

    var write_names = (wb.Workbook && (wb.Workbook.Names||[]).length > 0);

    /* fileVersion */
    /* fileSharing */

    var workbookPr = ({codeName:"ThisWorkbook"});
    if(wb.Workbook && wb.Workbook.WBProps) {
      WBPropsDef.forEach(function(x) {
        if((wb.Workbook.WBProps[x[0]]) == null) return;
        if((wb.Workbook.WBProps[x[0]]) == x[1]) return;
        workbookPr[x[0]] = (wb.Workbook.WBProps[x[0]]);
      });
      if(wb.Workbook.WBProps.CodeName) { workbookPr.codeName = wb.Workbook.WBProps.CodeName; delete workbookPr.CodeName; }
    }
    o[o.length] = (writextag('workbookPr', null, workbookPr));

    /* workbookProtection */

    var sheets = wb.Workbook && wb.Workbook.Sheets || [];
    var i = 0;

    /* bookViews */

    o[o.length] = "<sheets>";
    for(i = 0; i != wb.SheetNames.length; ++i) {
      var sht = ({name:escapexml(wb.SheetNames[i].slice(0,31))});
      sht.sheetId = ""+(i+1);
      sht["r:id"] = "rId"+(i+1);
      if(sheets[i]) switch(sheets[i].Hidden) {
        case 1: sht.state = "hidden"; break;
        case 2: sht.state = "veryHidden"; break;
      }
      o[o.length] = (writextag('sheet',null,sht));
    }
    o[o.length] = "</sheets>";

    /* functionGroups */
    /* externalReferences */

    if(write_names) {
      o[o.length] = "<definedNames>";
      if(wb.Workbook && wb.Workbook.Names) wb.Workbook.Names.forEach(function(n) {
        var d = {name:n.Name};
        if(n.Comment) d.comment = n.Comment;
        if(n.Sheet != null) d.localSheetId = ""+n.Sheet;
        if(n.Hidden) d.hidden = "1";
        if(!n.Ref) return;
        o[o.length] = writextag('definedName', String(n.Ref).replace(/</g, "&lt;").replace(/>/g, "&gt;"), d);
      });
      o[o.length] = "</definedNames>";
    }

    /* calcPr */
    /* oleSize */
    /* customWorkbookViews */
    /* pivotCaches */
    /* smartTagPr */
    /* smartTagTypes */
    /* webPublishing */
    /* fileRecoveryPr */
    /* webPublishObjects */
    /* extLst */

    if(o.length>2){ o[o.length] = '</workbook>'; o[1]=o[1].replace("/>",">"); }
    return o.join("");
  }
  /* [MS-XLSB] 2.4.304 BrtBundleSh */
  function parse_BrtBundleSh(data, length) {
    var z = {};
    z.Hidden = data.read_shift(4); //hsState ST_SheetState
    z.iTabID = data.read_shift(4);
    z.strRelID = parse_RelID(data,length-8);
    z.name = parse_XLWideString(data);
    return z;
  }
  function write_BrtBundleSh(data, o) {
    if(!o) o = new_buf(127);
    o.write_shift(4, data.Hidden);
    o.write_shift(4, data.iTabID);
    write_RelID(data.strRelID, o);
    write_XLWideString(data.name.slice(0,31), o);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.815 BrtWbProp */
  function parse_BrtWbProp(data, length) {
    var o = ({});
    var flags = data.read_shift(4);
    o.defaultThemeVersion = data.read_shift(4);
    var strName = (length > 8) ? parse_XLWideString(data) : "";
    if(strName.length > 0) o.CodeName = strName;
    o.autoCompressPictures = !!(flags & 0x10000);
    o.backupFile = !!(flags & 0x40);
    o.checkCompatibility = !!(flags & 0x1000);
    o.date1904 = !!(flags & 0x01);
    o.filterPrivacy = !!(flags & 0x08);
    o.hidePivotFieldList = !!(flags & 0x400);
    o.promptedSolutions = !!(flags & 0x10);
    o.publishItems = !!(flags & 0x800);
    o.refreshAllConnections = !!(flags & 0x40000);
    o.saveExternalLinkValues = !!(flags & 0x80);
    o.showBorderUnselectedTables = !!(flags & 0x04);
    o.showInkAnnotation = !!(flags & 0x20);
    o.showObjects = ["all", "placeholders", "none"][(flags >> 13) & 0x03];
    o.showPivotChartFilter = !!(flags & 0x8000);
    o.updateLinks = ["userSet", "never", "always"][(flags >> 8) & 0x03];
    return o;
  }
  function write_BrtWbProp(data, o) {
    if(!o) o = new_buf(72);
    var flags = 0;
    if(data) {
      /* TODO: mirror parse_BrtWbProp fields */
      if(data.filterPrivacy) flags |= 0x08;
    }
    o.write_shift(4, flags);
    o.write_shift(4, 0);
    write_XLSBCodeName(data && data.CodeName || "ThisWorkbook", o);
    return o.slice(0, o.l);
  }

  function parse_BrtFRTArchID$(data, length) {
    var o = {};
    data.read_shift(4);
    o.ArchID = data.read_shift(4);
    data.l += length - 8;
    return o;
  }

  /* [MS-XLSB] 2.4.687 BrtName */
  function parse_BrtName(data, length, opts) {
    var end = data.l + length;
    data.l += 4; //var flags = data.read_shift(4);
    data.l += 1; //var chKey = data.read_shift(1);
    var itab = data.read_shift(4);
    var name = parse_XLNameWideString(data);
    var formula = parse_XLSBNameParsedFormula(data, 0, opts);
    var comment = parse_XLNullableWideString(data);
    //if(0 /* fProc */) {
    // unusedstring1: XLNullableWideString
    // description: XLNullableWideString
    // helpTopic: XLNullableWideString
    // unusedstring2: XLNullableWideString
    //}
    data.l = end;
    var out = ({Name:name, Ptg:formula});
    if(itab < 0xFFFFFFF) out.Sheet = itab;
    if(comment) out.Comment = comment;
    return out;
  }

  /* [MS-XLSB] 2.1.7.61 Workbook */
  function parse_wb_bin(data, opts) {
    var wb = { AppVersion:{}, WBProps:{}, WBView:[], Sheets:[], CalcPr:{}, xmlns: "" };
    var state = [];
    var pass = false;

    if(!opts) opts = {};
    opts.biff = 12;

    var Names = [];
    var supbooks = ([[]]);
    supbooks.SheetNames = [];
    supbooks.XTI = [];

    recordhopper(data, function hopper_wb(val, R_n, RT) {
      switch(RT) {
        case 0x009C: /* 'BrtBundleSh' */
          supbooks.SheetNames.push(val.name);
          wb.Sheets.push(val); break;

        case 0x0099: /* 'BrtWbProp' */
          wb.WBProps = val; break;

        case 0x0027: /* 'BrtName' */
          if(val.Sheet != null) opts.SID = val.Sheet;
          val.Ref = stringify_formula(val.Ptg, null, null, supbooks, opts);
          delete opts.SID;
          delete val.Ptg;
          Names.push(val);
          break;
        case 0x040C: /* 'BrtNameExt' */ break;

        case 0x0165: /* 'BrtSupSelf' */
        case 0x0166: /* 'BrtSupSame' */
        case 0x0163: /* 'BrtSupBookSrc' */
        case 0x029B: /* 'BrtSupAddin' */
          if(!supbooks[0].length) supbooks[0] = [RT, val];
          else supbooks.push([RT, val]);
          supbooks[supbooks.length - 1].XTI = [];
          break;
        case 0x016A: /* 'BrtExternSheet' */
          if(supbooks.length === 0) { supbooks[0] = []; supbooks[0].XTI = []; }
          supbooks[supbooks.length - 1].XTI = supbooks[supbooks.length - 1].XTI.concat(val);
          supbooks.XTI = supbooks.XTI.concat(val);
          break;
        case 0x0169: /* 'BrtPlaceholderName' */
          break;

        /* case 'BrtModelTimeGroupingCalcCol' */
        case 0x0C00: /* 'BrtUid' */
        case 0x0C01: /* 'BrtRevisionPtr' */
        case 0x0817: /* 'BrtAbsPath15' */
        case 0x0216: /* 'BrtBookProtection' */
        case 0x02A5: /* 'BrtBookProtectionIso' */
        case 0x009E: /* 'BrtBookView' */
        case 0x009D: /* 'BrtCalcProp' */
        case 0x0262: /* 'BrtCrashRecErr' */
        case 0x0802: /* 'BrtDecoupledPivotCacheID' */
        case 0x009B: /* 'BrtFileRecover' */
        case 0x0224: /* 'BrtFileSharing' */
        case 0x02A4: /* 'BrtFileSharingIso' */
        case 0x0080: /* 'BrtFileVersion' */
        case 0x0299: /* 'BrtFnGroup' */
        case 0x0850: /* 'BrtModelRelationship' */
        case 0x084D: /* 'BrtModelTable' */
        case 0x0225: /* 'BrtOleSize' */
        case 0x0805: /* 'BrtPivotTableRef' */
        case 0x0254: /* 'BrtSmartTagType' */
        case 0x081C: /* 'BrtTableSlicerCacheID' */
        case 0x081B: /* 'BrtTableSlicerCacheIDs' */
        case 0x0822: /* 'BrtTimelineCachePivotCacheID' */
        case 0x018D: /* 'BrtUserBookView' */
        case 0x009A: /* 'BrtWbFactoid' */
        case 0x045D: /* 'BrtWbProp14' */
        case 0x0229: /* 'BrtWebOpt' */
        case 0x082B: /* 'BrtWorkBookPr15' */
          break;

        case 0x0023: /* 'BrtFRTBegin' */
          state.push(R_n); pass = true; break;
        case 0x0024: /* 'BrtFRTEnd' */
          state.pop(); pass = false; break;
        case 0x0025: /* 'BrtACBegin' */
          state.push(R_n); pass = true; break;
        case 0x0026: /* 'BrtACEnd' */
          state.pop(); pass = false; break;

        case 0x0010: /* 'BrtFRTArchID$' */ break;

        default:
          if((R_n||"").indexOf("Begin") > 0){/* empty */}
          else if((R_n||"").indexOf("End") > 0){/* empty */}
          else if(!pass || (opts.WTF && state[state.length-1] != "BrtACBegin" && state[state.length-1] != "BrtFRTBegin")) throw new Error("Unexpected record " + RT + " " + R_n);
      }
    }, opts);

    parse_wb_defaults(wb);

    // $FlowIgnore
    wb.Names = Names;

    (wb).supbooks = supbooks;
    return wb;
  }

  function write_BUNDLESHS(ba, wb) {
    write_record(ba, "BrtBeginBundleShs");
    for(var idx = 0; idx != wb.SheetNames.length; ++idx) {
      var viz = wb.Workbook && wb.Workbook.Sheets && wb.Workbook.Sheets[idx] && wb.Workbook.Sheets[idx].Hidden || 0;
      var d = { Hidden: viz, iTabID: idx+1, strRelID: 'rId' + (idx+1), name: wb.SheetNames[idx] };
      write_record(ba, "BrtBundleSh", write_BrtBundleSh(d));
    }
    write_record(ba, "BrtEndBundleShs");
  }

  /* [MS-XLSB] 2.4.649 BrtFileVersion */
  function write_BrtFileVersion(data, o) {
    if(!o) o = new_buf(127);
    for(var i = 0; i != 4; ++i) o.write_shift(4, 0);
    write_XLWideString("SheetJS", o);
    write_XLWideString(XLSX.version, o);
    write_XLWideString(XLSX.version, o);
    write_XLWideString("7262", o);
    o.length = o.l;
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  /* [MS-XLSB] 2.4.301 BrtBookView */
  function write_BrtBookView(idx, o) {
    if(!o) o = new_buf(29);
    o.write_shift(-4, 0);
    o.write_shift(-4, 460);
    o.write_shift(4,  28800);
    o.write_shift(4,  17600);
    o.write_shift(4,  500);
    o.write_shift(4,  idx);
    o.write_shift(4,  idx);
    var flags = 0x78;
    o.write_shift(1,  flags);
    return o.length > o.l ? o.slice(0, o.l) : o;
  }

  function write_BOOKVIEWS(ba, wb) {
    /* required if hidden tab appears before visible tab */
    if(!wb.Workbook || !wb.Workbook.Sheets) return;
    var sheets = wb.Workbook.Sheets;
    var i = 0, vistab = -1, hidden = -1;
    for(; i < sheets.length; ++i) {
      if(!sheets[i] || !sheets[i].Hidden && vistab == -1) vistab = i;
      else if(sheets[i].Hidden == 1 && hidden == -1) hidden = i;
    }
    if(hidden > vistab) return;
    write_record(ba, "BrtBeginBookViews");
    write_record(ba, "BrtBookView", write_BrtBookView(vistab));
    /* 1*(BrtBookView *FRT) */
    write_record(ba, "BrtEndBookViews");
  }

  /* [MS-XLSB] 2.4.305 BrtCalcProp */
  /*function write_BrtCalcProp(data, o) {
	if(!o) o = new_buf(26);
	o.write_shift(4,0); // force recalc
	o.write_shift(4,1);
	o.write_shift(4,0);
	write_Xnum(0, o);
	o.write_shift(-4, 1023);
	o.write_shift(1, 0x33);
	o.write_shift(1, 0x00);
	return o;
}*/

  /* [MS-XLSB] 2.4.646 BrtFileRecover */
  /*function write_BrtFileRecover(data, o) {
	if(!o) o = new_buf(1);
	o.write_shift(1,0);
	return o;
}*/

  /* [MS-XLSB] 2.1.7.61 Workbook */
  function write_wb_bin(wb, opts) {
    var ba = buf_array();
    write_record(ba, "BrtBeginBook");
    write_record(ba, "BrtFileVersion", write_BrtFileVersion());
    /* [[BrtFileSharingIso] BrtFileSharing] */
    write_record(ba, "BrtWbProp", write_BrtWbProp(wb.Workbook && wb.Workbook.WBProps || null));
    /* [ACABSPATH] */
    /* [[BrtBookProtectionIso] BrtBookProtection] */
    write_BOOKVIEWS(ba, wb, opts);
    write_BUNDLESHS(ba, wb, opts);
    /* [FNGROUP] */
    /* [EXTERNALS] */
    /* *BrtName */
    /* write_record(ba, "BrtCalcProp", write_BrtCalcProp()); */
    /* [BrtOleSize] */
    /* *(BrtUserBookView *FRT) */
    /* [PIVOTCACHEIDS] */
    /* [BrtWbFactoid] */
    /* [SMARTTAGTYPES] */
    /* [BrtWebOpt] */
    /* write_record(ba, "BrtFileRecover", write_BrtFileRecover()); */
    /* [WEBPUBITEMS] */
    /* [CRERRS] */
    /* FRTWORKBOOK */
    write_record(ba, "BrtEndBook");

    return ba.end();
  }
  function parse_wb(data, name, opts) {
    if(name.slice(-4)===".bin") return parse_wb_bin((data), opts);
    return parse_wb_xml((data), opts);
  }

  function parse_ws(data, name, idx, opts, rels, wb, themes, styles) {
    if(name.slice(-4)===".bin") return parse_ws_bin((data), opts, idx, rels, wb, themes, styles);
    return parse_ws_xml((data), opts, idx, rels, wb, themes, styles);
  }

  function parse_cs(data, name, idx, opts, rels, wb, themes, styles) {
    if(name.slice(-4)===".bin") return parse_cs_bin((data), opts, idx, rels, wb, themes, styles);
    return parse_cs_xml((data), opts, idx, rels, wb, themes, styles);
  }

  function parse_ms(data, name, idx, opts, rels, wb, themes, styles) {
    if(name.slice(-4)===".bin") return parse_ms_bin((data), opts, idx, rels, wb, themes, styles);
    return parse_ms_xml((data), opts, idx, rels, wb, themes, styles);
  }

  function parse_ds(data, name, idx, opts, rels, wb, themes, styles) {
    if(name.slice(-4)===".bin") return parse_ds_bin((data), opts, idx, rels, wb, themes, styles);
    return parse_ds_xml((data), opts, idx, rels, wb, themes, styles);
  }

  function parse_sty(data, name, themes, opts) {
    if(name.slice(-4)===".bin") return parse_sty_bin((data), themes, opts);
    return parse_sty_xml((data), themes, opts);
  }

  function parse_theme(data, name, opts) {
    return parse_theme_xml(data, opts);
  }

  function parse_sst(data, name, opts) {
    if(name.slice(-4)===".bin") return parse_sst_bin((data), opts);
    return parse_sst_xml((data), opts);
  }

  function parse_cmnt(data, name, opts) {
    if(name.slice(-4)===".bin") return parse_comments_bin((data), opts);
    return parse_comments_xml((data), opts);
  }

  function parse_cc(data, name, opts) {
    if(name.slice(-4)===".bin") return parse_cc_bin((data), name, opts);
    return parse_cc_xml((data), name, opts);
  }

  function parse_xlink(data, name, opts) {
    if(name.slice(-4)===".bin") return parse_xlink_bin((data), name, opts);
    return parse_xlink_xml((data), name, opts);
  }

  function write_wb(wb, name, opts) {
    return (name.slice(-4)===".bin" ? write_wb_bin : write_wb_xml)(wb, opts);
  }

  function write_ws(data, name, opts, wb, rels) {
    return (name.slice(-4)===".bin" ? write_ws_bin : write_ws_xml)(data, opts, wb, rels);
  }

// eslint-disable-next-line no-unused-vars
  function write_cs(data, name, opts, wb, rels) {
    return (name.slice(-4)===".bin" ? write_cs_bin : write_cs_xml)(data, opts, wb, rels);
  }

  function write_sty(data, name, opts) {
    return (name.slice(-4)===".bin" ? write_sty_bin : write_sty_xml)(data, opts);
  }

  function write_sst(data, name, opts) {
    return (name.slice(-4)===".bin" ? write_sst_bin : write_sst_xml)(data, opts);
  }

  function write_cmnt(data, name, opts) {
    return (name.slice(-4)===".bin" ? write_comments_bin : write_comments_xml)(data, opts);
  }
  /*
function write_cc(data, name:string, opts) {
	return (name.slice(-4)===".bin" ? write_cc_bin : write_cc_xml)(data, opts);
}
*/
  var attregexg2=/([\w:]+)=((?:")([^"]*)(?:")|(?:')([^']*)(?:'))/g;
  var attregex2=/([\w:]+)=((?:")(?:[^"]*)(?:")|(?:')(?:[^']*)(?:'))/;
  var _chr = function(c) { return String.fromCharCode(c); };
  function xlml_parsexmltag(tag, skip_root) {
    var words = tag.split(/\s+/);
    var z = ([]); if(!skip_root) z[0] = words[0];
    if(words.length === 1) return z;
    var m = tag.match(attregexg2), y, j, w, i;
    if(m) for(i = 0; i != m.length; ++i) {
      y = m[i].match(attregex2);
      if((j=y[1].indexOf(":")) === -1) z[y[1]] = y[2].slice(1,y[2].length-1);
      else {
        if(y[1].slice(0,6) === "xmlns:") w = "xmlns"+y[1].slice(6);
        else w = y[1].slice(j+1);
        z[w] = y[2].slice(1,y[2].length-1);
      }
    }
    return z;
  }
  function xlml_parsexmltagobj(tag) {
    var words = tag.split(/\s+/);
    var z = {};
    if(words.length === 1) return z;
    var m = tag.match(attregexg2), y, j, w, i;
    if(m) for(i = 0; i != m.length; ++i) {
      y = m[i].match(attregex2);
      if((j=y[1].indexOf(":")) === -1) z[y[1]] = y[2].slice(1,y[2].length-1);
      else {
        if(y[1].slice(0,6) === "xmlns:") w = "xmlns"+y[1].slice(6);
        else w = y[1].slice(j+1);
        z[w] = y[2].slice(1,y[2].length-1);
      }
    }
    return z;
  }

// ----

  function xlml_format(format, value) {
    var fmt = XLMLFormatMap[format] || unescapexml(format);
    if(fmt === "General") return SSF._general(value);
    return SSF.format(fmt, value);
  }

  function xlml_set_custprop(Custprops, key, cp, val) {
    var oval = val;
    switch((cp[0].match(/dt:dt="([\w.]+)"/)||["",""])[1]) {
      case "boolean": oval = parsexmlbool(val); break;
      case "i2": case "int": oval = parseInt(val, 10); break;
      case "r4": case "float": oval = parseFloat(val); break;
      case "date": case "dateTime.tz": oval = parseDate(val); break;
      case "i8": case "string": case "fixed": case "uuid": case "bin.base64": break;
      default: throw new Error("bad custprop:" + cp[0]);
    }
    Custprops[unescapexml(key)] = oval;
  }

  function safe_format_xlml(cell, nf, o) {
    if(cell.t === 'z') return;
    if(!o || o.cellText !== false) try {
      if(cell.t === 'e') { cell.w = cell.w || BErr[cell.v]; }
      else if(nf === "General") {
        if(cell.t === 'n') {
          if((cell.v|0) === cell.v) cell.w = SSF._general_int(cell.v);
          else cell.w = SSF._general_num(cell.v);
        }
        else cell.w = SSF._general(cell.v);
      }
      else cell.w = xlml_format(nf||"General", cell.v);
    } catch(e) { if(o.WTF) throw e; }
    try {
      var z = XLMLFormatMap[nf]||nf||"General";
      if(o.cellNF) cell.z = z;
      if(o.cellDates && cell.t == 'n' && SSF.is_date(z)) {
        var _d = SSF.parse_date_code(cell.v); if(_d) { cell.t = 'd'; cell.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
      }
    } catch(e) { if(o.WTF) throw e; }
  }

  function process_style_xlml(styles, stag, opts) {
    if(opts.cellStyles) {
      if(stag.Interior) {
        var I = stag.Interior;
        if(I.Pattern) I.patternType = XLMLPatternTypeMap[I.Pattern] || I.Pattern;
      }
    }
    styles[stag.ID] = stag;
  }

  /* TODO: there must exist some form of OSP-blessed spec */
  function parse_xlml_data(xml, ss, data, cell, base, styles, csty, row, arrayf, o) {
    var nf = "General", sid = cell.StyleID, S = {}; o = o || {};
    var interiors = [];
    var i = 0;
    if(sid === undefined && row) sid = row.StyleID;
    if(sid === undefined && csty) sid = csty.StyleID;
    while(styles[sid] !== undefined) {
      if(styles[sid].nf) nf = styles[sid].nf;
      if(styles[sid].Interior) interiors.push(styles[sid].Interior);
      if(!styles[sid].Parent) break;
      sid = styles[sid].Parent;
    }
    switch(data.Type) {
      case 'Boolean':
        cell.t = 'b';
        cell.v = parsexmlbool(xml);
        break;
      case 'String':
        cell.t = 's'; cell.r = xlml_fixstr(unescapexml(xml));
        cell.v = xml.indexOf("<") > -1 ? unescapexml(ss) : cell.r;
        break;
      case 'DateTime':
        if(xml.slice(-1) != "Z") xml += "Z";
        cell.v = (parseDate(xml) - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
        if(cell.v !== cell.v) cell.v = unescapexml(xml);
        else if(cell.v<60) cell.v = cell.v -1;
        if(!nf || nf == "General") nf = "yyyy-mm-dd";
      /* falls through */
      case 'Number':
        if(cell.v === undefined) cell.v=+xml;
        if(!cell.t) cell.t = 'n';
        break;
      case 'Error': cell.t = 'e'; cell.v = RBErr[xml]; if(o.cellText !== false) cell.w = xml; break;
      default: cell.t = 's'; cell.v = xlml_fixstr(ss||xml); break;
    }
    safe_format_xlml(cell, nf, o);
    if(o.cellFormula !== false) {
      if(cell.Formula) {
        var fstr = unescapexml(cell.Formula);
        /* strictly speaking, the leading = is required but some writers omit */
        if(fstr.charCodeAt(0) == 61 /* = */) fstr = fstr.slice(1);
        cell.f = rc_to_a1(fstr, base);
        delete cell.Formula;
        if(cell.ArrayRange == "RC") cell.F = rc_to_a1("RC:RC", base);
        else if(cell.ArrayRange) {
          cell.F = rc_to_a1(cell.ArrayRange, base);
          arrayf.push([safe_decode_range(cell.F), cell.F]);
        }
      } else {
        for(i = 0; i < arrayf.length; ++i)
          if(base.r >= arrayf[i][0].s.r && base.r <= arrayf[i][0].e.r)
            if(base.c >= arrayf[i][0].s.c && base.c <= arrayf[i][0].e.c)
              cell.F = arrayf[i][1];
      }
    }
    if(o.cellStyles) {
      interiors.forEach(function(x) {
        if(!S.patternType && x.patternType) S.patternType = x.patternType;
      });
      cell.s = S;
    }
    if(cell.StyleID !== undefined) cell.ixfe = cell.StyleID;
  }

  function xlml_clean_comment(comment) {
    comment.t = comment.v || "";
    comment.t = comment.t.replace(/\r\n/g,"\n").replace(/\r/g,"\n");
    comment.v = comment.w = comment.ixfe = undefined;
  }

  function xlml_normalize(d) {
    if(has_buf && Buffer.isBuffer(d)) return d.toString('utf8');
    if(typeof d === 'string') return d;
    /* duktape */
    if(typeof Uint8Array !== 'undefined' && d instanceof Uint8Array) return utf8read(a2s(ab2a(d)));
    throw new Error("Bad input format: expected Buffer or string");
  }

  /* TODO: Everything */
  /* UOS uses CJK in tags */
  var xlmlregex = /<(\/?)([^\s?>!\/:]*:|)([^\s?>:\/]+)[^>]*>/mg;
//var xlmlregex = /<(\/?)([a-z0-9]*:|)(\w+)[^>]*>/mg;
  function parse_xlml_xml(d, _opts) {
    var opts = _opts || {};
    make_ssf(SSF);
    var str = debom(xlml_normalize(d));
    if(opts.type == 'binary' || opts.type == 'array' || opts.type == 'base64') {
      if(typeof cptable !== 'undefined') str = cptable.utils.decode(65001, char_codes(str));
      else str = utf8read(str);
    }
    var opening = str.slice(0, 1024).toLowerCase(), ishtml = false;
    if(opening.indexOf("<?xml") == -1) ["html", "table", "head", "meta", "script", "style", "div"].forEach(function(tag) { if(opening.indexOf("<" + tag) >= 0) ishtml = true; });
    if(ishtml) return HTML_.to_workbook(str, opts);
    var Rn;
    var state = [], tmp;
    if(DENSE != null && opts.dense == null) opts.dense = DENSE;
    var sheets = {}, sheetnames = [], cursheet = (opts.dense ? [] : {}), sheetname = "";
    var table = {}, cell = ({}), row = {};// eslint-disable-line no-unused-vars
    var dtag = xlml_parsexmltag('<Data ss:Type="String">'), didx = 0;
    var c = 0, r = 0;
    var refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
    var styles = {}, stag = {};
    var ss = "", fidx = 0;
    var merges = [];
    var Props = {}, Custprops = {}, pidx = 0, cp = [];
    var comments = [], comment = ({});
    var cstys = [], csty, seencol = false;
    var arrayf = [];
    var rowinfo = [], rowobj = {}, cc = 0, rr = 0;
    var Workbook = ({ Sheets:[], WBProps:{date1904:false} }), wsprops = {};
    xlmlregex.lastIndex = 0;
    str = str.replace(/<!--([\s\S]*?)-->/mg,"");
    while((Rn = xlmlregex.exec(str))) switch(Rn[3]) {
      case 'Data':
        if(state[state.length-1][1]) break;
        if(Rn[1]==='/') parse_xlml_data(str.slice(didx, Rn.index), ss, dtag, state[state.length-1][0]=="Comment"?comment:cell, {c:c,r:r}, styles, cstys[c], row, arrayf, opts);
        else { ss = ""; dtag = xlml_parsexmltag(Rn[0]); didx = Rn.index + Rn[0].length; }
        break;
      case 'Cell':
        if(Rn[1]==='/'){
          if(comments.length > 0) cell.c = comments;
          if((!opts.sheetRows || opts.sheetRows > r) && cell.v !== undefined) {
            if(opts.dense) {
              if(!cursheet[r]) cursheet[r] = [];
              cursheet[r][c] = cell;
            } else cursheet[encode_col(c) + encode_row(r)] = cell;
          }
          if(cell.HRef) {
            cell.l = ({Target:cell.HRef});
            if(cell.HRefScreenTip) cell.l.Tooltip = cell.HRefScreenTip;
            delete cell.HRef; delete cell.HRefScreenTip;
          }
          if(cell.MergeAcross || cell.MergeDown) {
            cc = c + (parseInt(cell.MergeAcross,10)|0);
            rr = r + (parseInt(cell.MergeDown,10)|0);
            merges.push({s:{c:c,r:r},e:{c:cc,r:rr}});
          }
          if(!opts.sheetStubs) { if(cell.MergeAcross) c = cc + 1; else ++c; }
          else if(cell.MergeAcross || cell.MergeDown) {
            for(var cma = c; cma <= cc; ++cma) {
              for(var cmd = r; cmd <= rr; ++cmd) {
                if(cma > c || cmd > r) {
                  if(opts.dense) {
                    if(!cursheet[cmd]) cursheet[cmd] = [];
                    cursheet[cmd][cma] = {t:'z'};
                  } else cursheet[encode_col(cma) + encode_row(cmd)] = {t:'z'};
                }
              }
            }
            c = cc + 1;
          }
          else ++c;
        } else {
          cell = xlml_parsexmltagobj(Rn[0]);
          if(cell.Index) c = +cell.Index - 1;
          if(c < refguess.s.c) refguess.s.c = c;
          if(c > refguess.e.c) refguess.e.c = c;
          if(Rn[0].slice(-2) === "/>") ++c;
          comments = [];
        }
        break;
      case 'Row':
        if(Rn[1]==='/' || Rn[0].slice(-2) === "/>") {
          if(r < refguess.s.r) refguess.s.r = r;
          if(r > refguess.e.r) refguess.e.r = r;
          if(Rn[0].slice(-2) === "/>") {
            row = xlml_parsexmltag(Rn[0]);
            if(row.Index) r = +row.Index - 1;
          }
          c = 0; ++r;
        } else {
          row = xlml_parsexmltag(Rn[0]);
          if(row.Index) r = +row.Index - 1;
          rowobj = {};
          if(row.AutoFitHeight == "0" || row.Height) {
            rowobj.hpx = parseInt(row.Height, 10); rowobj.hpt = px2pt(rowobj.hpx);
            rowinfo[r] = rowobj;
          }
          if(row.Hidden == "1") { rowobj.hidden = true; rowinfo[r] = rowobj; }
        }
        break;
      case 'Worksheet': /* TODO: read range from FullRows/FullColumns */
        if(Rn[1]==='/'){
          if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));
          sheetnames.push(sheetname);
          if(refguess.s.r <= refguess.e.r && refguess.s.c <= refguess.e.c) {
            cursheet["!ref"] = encode_range(refguess);
            if(opts.sheetRows && opts.sheetRows <= refguess.e.r) {
              cursheet["!fullref"] = cursheet["!ref"];
              refguess.e.r = opts.sheetRows - 1;
              cursheet["!ref"] = encode_range(refguess);
            }
          }
          if(merges.length) cursheet["!merges"] = merges;
          if(cstys.length > 0) cursheet["!cols"] = cstys;
          if(rowinfo.length > 0) cursheet["!rows"] = rowinfo;
          sheets[sheetname] = cursheet;
        } else {
          refguess = {s: {r:2000000, c:2000000}, e: {r:0, c:0} };
          r = c = 0;
          state.push([Rn[3], false]);
          tmp = xlml_parsexmltag(Rn[0]);
          sheetname = unescapexml(tmp.Name);
          cursheet = (opts.dense ? [] : {});
          merges = [];
          arrayf = [];
          rowinfo = [];
          wsprops = {name:sheetname, Hidden:0};
          Workbook.Sheets.push(wsprops);
        }
        break;
      case 'Table':
        if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
        else if(Rn[0].slice(-2) == "/>") break;
        else {
          table = xlml_parsexmltag(Rn[0]);
          state.push([Rn[3], false]);
          cstys = []; seencol = false;
        }
        break;

      case 'Style':
        if(Rn[1]==='/') process_style_xlml(styles, stag, opts);
        else stag = xlml_parsexmltag(Rn[0]);
        break;

      case 'NumberFormat':
        stag.nf = unescapexml(xlml_parsexmltag(Rn[0]).Format || "General");
        if(XLMLFormatMap[stag.nf]) stag.nf = XLMLFormatMap[stag.nf];
        for(var ssfidx = 0; ssfidx != 0x188; ++ssfidx) if(SSF._table[ssfidx] == stag.nf) break;
        if(ssfidx == 0x188) for(ssfidx = 0x39; ssfidx != 0x188; ++ssfidx) if(SSF._table[ssfidx] == null) { SSF.load(stag.nf, ssfidx); break; }
        break;

      case 'Column':
        if(state[state.length-1][0] !== 'Table') break;
        csty = xlml_parsexmltag(Rn[0]);
        if(csty.Hidden) { csty.hidden = true; delete csty.Hidden; }
        if(csty.Width) csty.wpx = parseInt(csty.Width, 10);
        if(!seencol && csty.wpx > 10) {
          seencol = true; MDW = DEF_MDW; //find_mdw_wpx(csty.wpx);
          for(var _col = 0; _col < cstys.length; ++_col) if(cstys[_col]) process_col(cstys[_col]);
        }
        if(seencol) process_col(csty);
        cstys[(csty.Index-1||cstys.length)] = csty;
        for(var i = 0; i < +csty.Span; ++i) cstys[cstys.length] = dup(csty);
        break;

      case 'NamedRange':
        if(!Workbook.Names) Workbook.Names = [];
        var _NamedRange = parsexmltag(Rn[0]);
        var _DefinedName = ({
          Name: _NamedRange.Name,
          Ref: rc_to_a1(_NamedRange.RefersTo.slice(1), {r:0, c:0})
        });
        if(Workbook.Sheets.length>0) _DefinedName.Sheet=Workbook.Sheets.length-1;
        Workbook.Names.push(_DefinedName);
        break;

      case 'NamedCell': break;
      case 'B': break;
      case 'I': break;
      case 'U': break;
      case 'S': break;
      case 'Sub': break;
      case 'Sup': break;
      case 'Span': break;
      case 'Border': break;
      case 'Alignment': break;
      case 'Borders': break;
      case 'Font':
        if(Rn[0].slice(-2) === "/>") break;
        else if(Rn[1]==="/") ss += str.slice(fidx, Rn.index);
        else fidx = Rn.index + Rn[0].length;
        break;
      case 'Interior':
        if(!opts.cellStyles) break;
        stag.Interior = xlml_parsexmltag(Rn[0]);
        break;
      case 'Protection': break;

      case 'Author':
      case 'Title':
      case 'Description':
      case 'Created':
      case 'Keywords':
      case 'Subject':
      case 'Category':
      case 'Company':
      case 'LastAuthor':
      case 'LastSaved':
      case 'LastPrinted':
      case 'Version':
      case 'Revision':
      case 'TotalTime':
      case 'HyperlinkBase':
      case 'Manager':
      case 'ContentStatus':
      case 'Identifier':
      case 'Language':
      case 'AppName':
        if(Rn[0].slice(-2) === "/>") break;
        else if(Rn[1]==="/") xlml_set_prop(Props, Rn[3], str.slice(pidx, Rn.index));
        else pidx = Rn.index + Rn[0].length;
        break;
      case 'Paragraphs': break;

      case 'Styles':
      case 'Workbook':
        if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
        else state.push([Rn[3], false]);
        break;

      case 'Comment':
        if(Rn[1]==='/'){
          if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));
          xlml_clean_comment(comment);
          comments.push(comment);
        } else {
          state.push([Rn[3], false]);
          tmp = xlml_parsexmltag(Rn[0]);
          comment = ({a:tmp.Author});
        }
        break;

      case 'AutoFilter':
        if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
        else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
          var AutoFilter = xlml_parsexmltag(Rn[0]);
          cursheet['!autofilter'] = { ref:rc_to_a1(AutoFilter.Range).replace(/\$/g,"") };
          state.push([Rn[3], true]);
        }
        break;

      case 'Name': break;

      case 'ComponentOptions':
      case 'DocumentProperties':
      case 'CustomDocumentProperties':
      case 'OfficeDocumentSettings':
      case 'PivotTable':
      case 'PivotCache':
      case 'Names':
      case 'MapInfo':
      case 'PageBreaks':
      case 'QueryTable':
      case 'DataValidation':
      case 'Sorting':
      case 'Schema':
      case 'data':
      case 'ConditionalFormatting':
      case 'SmartTagType':
      case 'SmartTags':
      case 'ExcelWorkbook':
      case 'WorkbookOptions':
      case 'WorksheetOptions':
        if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw new Error("Bad state: "+tmp.join("|"));}
        else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
        break;

      default:
        /* FODS file root is <office:document> */
        if(state.length == 0 && Rn[3] == "document") return parse_fods(str, opts);
        /* UOS file root is <uof:UOF> */
        if(state.length == 0 && Rn[3] == "UOF") return parse_fods(str, opts);

        var seen = true;
        switch(state[state.length-1][0]) {
          /* OfficeDocumentSettings */
          case 'OfficeDocumentSettings': switch(Rn[3]) {
            case 'AllowPNG': break;
            case 'RemovePersonalInformation': break;
            case 'DownloadComponents': break;
            case 'LocationOfComponents': break;
            case 'Colors': break;
            case 'Color': break;
            case 'Index': break;
            case 'RGB': break;
            case 'PixelsPerInch': break; // TODO: set PPI
            case 'TargetScreenSize': break;
            case 'ReadOnlyRecommended': break;
            default: seen = false;
          } break;

          /* ComponentOptions */
          case 'ComponentOptions': switch(Rn[3]) {
            case 'Toolbar': break;
            case 'HideOfficeLogo': break;
            case 'SpreadsheetAutoFit': break;
            case 'Label': break;
            case 'Caption': break;
            case 'MaxHeight': break;
            case 'MaxWidth': break;
            case 'NextSheetNumber': break;
            default: seen = false;
          } break;

          /* ExcelWorkbook */
          case 'ExcelWorkbook': switch(Rn[3]) {
            case 'Date1904':
              Workbook.WBProps.date1904 = true;
              break;
            case 'WindowHeight': break;
            case 'WindowWidth': break;
            case 'WindowTopX': break;
            case 'WindowTopY': break;
            case 'TabRatio': break;
            case 'ProtectStructure': break;
            case 'ProtectWindows': break;
            case 'ActiveSheet': break;
            case 'DisplayInkNotes': break;
            case 'FirstVisibleSheet': break;
            case 'SupBook': break;
            case 'SheetName': break;
            case 'SheetIndex': break;
            case 'SheetIndexFirst': break;
            case 'SheetIndexLast': break;
            case 'Dll': break;
            case 'AcceptLabelsInFormulas': break;
            case 'DoNotSaveLinkValues': break;
            case 'Iteration': break;
            case 'MaxIterations': break;
            case 'MaxChange': break;
            case 'Path': break;
            case 'Xct': break;
            case 'Count': break;
            case 'SelectedSheets': break;
            case 'Calculation': break;
            case 'Uncalced': break;
            case 'StartupPrompt': break;
            case 'Crn': break;
            case 'ExternName': break;
            case 'Formula': break;
            case 'ColFirst': break;
            case 'ColLast': break;
            case 'WantAdvise': break;
            case 'Boolean': break;
            case 'Error': break;
            case 'Text': break;
            case 'OLE': break;
            case 'NoAutoRecover': break;
            case 'PublishObjects': break;
            case 'DoNotCalculateBeforeSave': break;
            case 'Number': break;
            case 'RefModeR1C1': break;
            case 'EmbedSaveSmartTags': break;
            default: seen = false;
          } break;

          /* WorkbookOptions */
          case 'WorkbookOptions': switch(Rn[3]) {
            case 'OWCVersion': break;
            case 'Height': break;
            case 'Width': break;
            default: seen = false;
          } break;

          /* WorksheetOptions */
          case 'WorksheetOptions': switch(Rn[3]) {
            case 'Visible':
              if(Rn[0].slice(-2) === "/>"){/* empty */}
              else if(Rn[1]==="/") switch(str.slice(pidx, Rn.index)) {
                case "SheetHidden": wsprops.Hidden = 1; break;
                case "SheetVeryHidden": wsprops.Hidden = 2; break;
              }
              else pidx = Rn.index + Rn[0].length;
              break;
            case 'Header':
              if(!cursheet['!margins']) default_margins(cursheet['!margins']={}, 'xlml');
              cursheet['!margins'].header = parsexmltag(Rn[0]).Margin;
              break;
            case 'Footer':
              if(!cursheet['!margins']) default_margins(cursheet['!margins']={}, 'xlml');
              cursheet['!margins'].footer = parsexmltag(Rn[0]).Margin;
              break;
            case 'PageMargins':
              var pagemargins = parsexmltag(Rn[0]);
              if(!cursheet['!margins']) default_margins(cursheet['!margins']={},'xlml');
              if(pagemargins.Top) cursheet['!margins'].top = pagemargins.Top;
              if(pagemargins.Left) cursheet['!margins'].left = pagemargins.Left;
              if(pagemargins.Right) cursheet['!margins'].right = pagemargins.Right;
              if(pagemargins.Bottom) cursheet['!margins'].bottom = pagemargins.Bottom;
              break;
            case 'DisplayRightToLeft':
              if(!Workbook.Views) Workbook.Views = [];
              if(!Workbook.Views[0]) Workbook.Views[0] = {};
              Workbook.Views[0].RTL = true;
              break;

            case 'Unsynced': break;
            case 'Print': break;
            case 'Panes': break;
            case 'Scale': break;
            case 'Pane': break;
            case 'Number': break;
            case 'Layout': break;
            case 'PageSetup': break;
            case 'Selected': break;
            case 'ProtectObjects': break;
            case 'EnableSelection': break;
            case 'ProtectScenarios': break;
            case 'ValidPrinterInfo': break;
            case 'HorizontalResolution': break;
            case 'VerticalResolution': break;
            case 'NumberofCopies': break;
            case 'ActiveRow': break;
            case 'ActiveCol': break;
            case 'ActivePane': break;
            case 'TopRowVisible': break;
            case 'TopRowBottomPane': break;
            case 'LeftColumnVisible': break;
            case 'LeftColumnRightPane': break;
            case 'FitToPage': break;
            case 'RangeSelection': break;
            case 'PaperSizeIndex': break;
            case 'PageLayoutZoom': break;
            case 'PageBreakZoom': break;
            case 'FilterOn': break;
            case 'DoNotDisplayGridlines': break;
            case 'SplitHorizontal': break;
            case 'SplitVertical': break;
            case 'FreezePanes': break;
            case 'FrozenNoSplit': break;
            case 'FitWidth': break;
            case 'FitHeight': break;
            case 'CommentsLayout': break;
            case 'Zoom': break;
            case 'LeftToRight': break;
            case 'Gridlines': break;
            case 'AllowSort': break;
            case 'AllowFilter': break;
            case 'AllowInsertRows': break;
            case 'AllowDeleteRows': break;
            case 'AllowInsertCols': break;
            case 'AllowDeleteCols': break;
            case 'AllowInsertHyperlinks': break;
            case 'AllowFormatCells': break;
            case 'AllowSizeCols': break;
            case 'AllowSizeRows': break;
            case 'NoSummaryRowsBelowDetail': break;
            case 'TabColorIndex': break;
            case 'DoNotDisplayHeadings': break;
            case 'ShowPageLayoutZoom': break;
            case 'NoSummaryColumnsRightDetail': break;
            case 'BlackAndWhite': break;
            case 'DoNotDisplayZeros': break;
            case 'DisplayPageBreak': break;
            case 'RowColHeadings': break;
            case 'DoNotDisplayOutline': break;
            case 'NoOrientation': break;
            case 'AllowUsePivotTables': break;
            case 'ZeroHeight': break;
            case 'ViewableRange': break;
            case 'Selection': break;
            case 'ProtectContents': break;
            default: seen = false;
          } break;

          /* PivotTable */
          case 'PivotTable': case 'PivotCache': switch(Rn[3]) {
            case 'ImmediateItemsOnDrop': break;
            case 'ShowPageMultipleItemLabel': break;
            case 'CompactRowIndent': break;
            case 'Location': break;
            case 'PivotField': break;
            case 'Orientation': break;
            case 'LayoutForm': break;
            case 'LayoutSubtotalLocation': break;
            case 'LayoutCompactRow': break;
            case 'Position': break;
            case 'PivotItem': break;
            case 'DataType': break;
            case 'DataField': break;
            case 'SourceName': break;
            case 'ParentField': break;
            case 'PTLineItems': break;
            case 'PTLineItem': break;
            case 'CountOfSameItems': break;
            case 'Item': break;
            case 'ItemType': break;
            case 'PTSource': break;
            case 'CacheIndex': break;
            case 'ConsolidationReference': break;
            case 'FileName': break;
            case 'Reference': break;
            case 'NoColumnGrand': break;
            case 'NoRowGrand': break;
            case 'BlankLineAfterItems': break;
            case 'Hidden': break;
            case 'Subtotal': break;
            case 'BaseField': break;
            case 'MapChildItems': break;
            case 'Function': break;
            case 'RefreshOnFileOpen': break;
            case 'PrintSetTitles': break;
            case 'MergeLabels': break;
            case 'DefaultVersion': break;
            case 'RefreshName': break;
            case 'RefreshDate': break;
            case 'RefreshDateCopy': break;
            case 'VersionLastRefresh': break;
            case 'VersionLastUpdate': break;
            case 'VersionUpdateableMin': break;
            case 'VersionRefreshableMin': break;
            case 'Calculation': break;
            default: seen = false;
          } break;

          /* PageBreaks */
          case 'PageBreaks': switch(Rn[3]) {
            case 'ColBreaks': break;
            case 'ColBreak': break;
            case 'RowBreaks': break;
            case 'RowBreak': break;
            case 'ColStart': break;
            case 'ColEnd': break;
            case 'RowEnd': break;
            default: seen = false;
          } break;

          /* AutoFilter */
          case 'AutoFilter': switch(Rn[3]) {
            case 'AutoFilterColumn': break;
            case 'AutoFilterCondition': break;
            case 'AutoFilterAnd': break;
            case 'AutoFilterOr': break;
            default: seen = false;
          } break;

          /* QueryTable */
          case 'QueryTable': switch(Rn[3]) {
            case 'Id': break;
            case 'AutoFormatFont': break;
            case 'AutoFormatPattern': break;
            case 'QuerySource': break;
            case 'QueryType': break;
            case 'EnableRedirections': break;
            case 'RefreshedInXl9': break;
            case 'URLString': break;
            case 'HTMLTables': break;
            case 'Connection': break;
            case 'CommandText': break;
            case 'RefreshInfo': break;
            case 'NoTitles': break;
            case 'NextId': break;
            case 'ColumnInfo': break;
            case 'OverwriteCells': break;
            case 'DoNotPromptForFile': break;
            case 'TextWizardSettings': break;
            case 'Source': break;
            case 'Number': break;
            case 'Decimal': break;
            case 'ThousandSeparator': break;
            case 'TrailingMinusNumbers': break;
            case 'FormatSettings': break;
            case 'FieldType': break;
            case 'Delimiters': break;
            case 'Tab': break;
            case 'Comma': break;
            case 'AutoFormatName': break;
            case 'VersionLastEdit': break;
            case 'VersionLastRefresh': break;
            default: seen = false;
          } break;

          case 'Sorting':
          case 'ConditionalFormatting':
          case 'DataValidation':
            switch(Rn[3]) {
              case 'Range': break;
              case 'Type': break;
              case 'Min': break;
              case 'Max': break;
              case 'Sort': break;
              case 'Descending': break;
              case 'Order': break;
              case 'CaseSensitive': break;
              case 'Value': break;
              case 'ErrorStyle': break;
              case 'ErrorMessage': break;
              case 'ErrorTitle': break;
              case 'CellRangeList': break;
              case 'InputMessage': break;
              case 'InputTitle': break;
              case 'ComboHide': break;
              case 'InputHide': break;
              case 'Condition': break;
              case 'Qualifier': break;
              case 'UseBlank': break;
              case 'Value1': break;
              case 'Value2': break;
              case 'Format': break;
              default: seen = false;
            } break;

          /* MapInfo (schema) */
          case 'MapInfo': case 'Schema': case 'data': switch(Rn[3]) {
            case 'Map': break;
            case 'Entry': break;
            case 'Range': break;
            case 'XPath': break;
            case 'Field': break;
            case 'XSDType': break;
            case 'FilterOn': break;
            case 'Aggregate': break;
            case 'ElementType': break;
            case 'AttributeType': break;
            /* These are from xsd (XML Schema Definition) */
            case 'schema':
            case 'element':
            case 'complexType':
            case 'datatype':
            case 'all':
            case 'attribute':
            case 'extends': break;

            case 'row': break;
            default: seen = false;
          } break;

          /* SmartTags (can be anything) */
          case 'SmartTags': break;

          default: seen = false; break;
        }
        if(seen) break;
        /* CustomDocumentProperties */
        if(!state[state.length-1][1]) throw 'Unrecognized tag: ' + Rn[3] + "|" + state.join("|");
        if(state[state.length-1][0]==='CustomDocumentProperties') {
          if(Rn[0].slice(-2) === "/>") break;
          else if(Rn[1]==="/") xlml_set_custprop(Custprops, Rn[3], cp, str.slice(pidx, Rn.index));
          else { cp = Rn; pidx = Rn.index + Rn[0].length; }
          break;
        }
        if(opts.WTF) throw 'Unrecognized tag: ' + Rn[3] + "|" + state.join("|");
    }
    var out = ({});
    if(!opts.bookSheets && !opts.bookProps) out.Sheets = sheets;
    out.SheetNames = sheetnames;
    out.Workbook = Workbook;
    out.SSF = SSF.get_table();
    out.Props = Props;
    out.Custprops = Custprops;
    return out;
  }

  function parse_xlml(data, opts) {
    fix_read_opts(opts=opts||{});
    switch(opts.type||"base64") {
      case "base64": return parse_xlml_xml(Base64.decode(data), opts);
      case "binary": case "buffer": case "file": return parse_xlml_xml(data, opts);
      case "array": return parse_xlml_xml(a2s(data), opts);
    }
  }

  /* TODO */
  function write_props_xlml(wb, opts) {
    var o = [];
    /* DocumentProperties */
    if(wb.Props) o.push(xlml_write_docprops(wb.Props, opts));
    /* CustomDocumentProperties */
    if(wb.Custprops) o.push(xlml_write_custprops(wb.Props, wb.Custprops, opts));
    return o.join("");
  }
  /* TODO */
  function write_wb_xlml() {
    /* OfficeDocumentSettings */
    /* ExcelWorkbook */
    return "";
  }
  /* TODO */
  function write_sty_xlml(wb, opts) {
    /* Styles */
    var styles = ['<Style ss:ID="Default" ss:Name="Normal"><NumberFormat/></Style>'];
    opts.cellXfs.forEach(function(xf, id) {
      var payload = [];
      payload.push(writextag('NumberFormat', null, {"ss:Format": escapexml(SSF._table[xf.numFmtId])}));
      styles.push(writextag('Style', payload.join(""), {"ss:ID": "s" + (21+id)}));
    });
    return writextag("Styles", styles.join(""));
  }
  function write_name_xlml(n) { return writextag("NamedRange", null, {"ss:Name": n.Name, "ss:RefersTo":"=" + a1_to_rc(n.Ref, {r:0,c:0})}); }
  function write_names_xlml(wb) {
    if(!((wb||{}).Workbook||{}).Names) return "";
    var names = wb.Workbook.Names;
    var out = [];
    for(var i = 0; i < names.length; ++i) {
      var n = names[i];
      if(n.Sheet != null) continue;
      if(n.Name.match(/^_xlfn\./)) continue;
      out.push(write_name_xlml(n));
    }
    return writextag("Names", out.join(""));
  }
  function write_ws_xlml_names(ws, opts, idx, wb) {
    if(!ws) return "";
    if(!((wb||{}).Workbook||{}).Names) return "";
    var names = wb.Workbook.Names;
    var out = [];
    for(var i = 0; i < names.length; ++i) {
      var n = names[i];
      if(n.Sheet != idx) continue;
      /*switch(n.Name) {
			case "_": continue;
		}*/
      if(n.Name.match(/^_xlfn\./)) continue;
      out.push(write_name_xlml(n));
    }
    return out.join("");
  }
  /* WorksheetOptions */
  function write_ws_xlml_wsopts(ws, opts, idx, wb) {
    if(!ws) return "";
    var o = [];
    /* NOTE: spec technically allows any order, but stick with implied order */

    /* FitToPage */
    /* DoNotDisplayColHeaders */
    /* DoNotDisplayRowHeaders */
    /* ViewableRange */
    /* Selection */
    /* GridlineColor */
    /* Name */
    /* ExcelWorksheetType */
    /* IntlMacro */
    /* Unsynced */
    /* Selected */
    /* CodeName */

    if(ws['!margins']) {
      o.push("<PageSetup>");
      if(ws['!margins'].header) o.push(writextag("Header", null, {'x:Margin':ws['!margins'].header}));
      if(ws['!margins'].footer) o.push(writextag("Footer", null, {'x:Margin':ws['!margins'].footer}));
      o.push(writextag("PageMargins", null, {
        'x:Bottom': ws['!margins'].bottom || "0.75",
        'x:Left': ws['!margins'].left || "0.7",
        'x:Right': ws['!margins'].right || "0.7",
        'x:Top': ws['!margins'].top || "0.75"
      }));
      o.push("</PageSetup>");
    }

    /* PageSetup */
    /* DisplayPageBreak */
    /* TransitionExpressionEvaluation */
    /* TransitionFormulaEntry */
    /* Print */
    /* Zoom */
    /* PageLayoutZoom */
    /* PageBreakZoom */
    /* ShowPageBreakZoom */
    /* DefaultRowHeight */
    /* DefaultColumnWidth */
    /* StandardWidth */

    if(wb && wb.Workbook && wb.Workbook.Sheets && wb.Workbook.Sheets[idx]) {
      /* Visible */
      if(wb.Workbook.Sheets[idx].Hidden) o.push(writextag("Visible", (wb.Workbook.Sheets[idx].Hidden == 1 ? "SheetHidden" : "SheetVeryHidden"), {}));
      else {
        /* Selected */
        for(var i = 0; i < idx; ++i) if(wb.Workbook.Sheets[i] && !wb.Workbook.Sheets[i].Hidden) break;
        if(i == idx) o.push("<Selected/>");
      }
    }

    /* LeftColumnVisible */

    if(((((wb||{}).Workbook||{}).Views||[])[0]||{}).RTL) o.push("<DisplayRightToLeft/>");

    /* GridlineColorIndex */
    /* DisplayFormulas */
    /* DoNotDisplayGridlines */
    /* DoNotDisplayHeadings */
    /* DoNotDisplayOutline */
    /* ApplyAutomaticOutlineStyles */
    /* NoSummaryRowsBelowDetail */
    /* NoSummaryColumnsRightDetail */
    /* DoNotDisplayZeros */
    /* ActiveRow */
    /* ActiveColumn */
    /* FilterOn */
    /* RangeSelection */
    /* TopRowVisible */
    /* TopRowBottomPane */
    /* LeftColumnRightPane */
    /* ActivePane */
    /* SplitHorizontal */
    /* SplitVertical */
    /* FreezePanes */
    /* FrozenNoSplit */
    /* TabColorIndex */
    /* Panes */

    /* NOTE: Password not supported in XLML Format */
    if(ws['!protect']) {
      o.push(writetag("ProtectContents", "True"));
      if(ws['!protect'].objects) o.push(writetag("ProtectObjects", "True"));
      if(ws['!protect'].scenarios) o.push(writetag("ProtectScenarios", "True"));
      if(ws['!protect'].selectLockedCells != null && !ws['!protect'].selectLockedCells) o.push(writetag("EnableSelection", "NoSelection"));
      else if(ws['!protect'].selectUnlockedCells != null && !ws['!protect'].selectUnlockedCells) o.push(writetag("EnableSelection", "UnlockedCells"));
      [
        [ "formatCells", "AllowFormatCells" ],
        [ "formatColumns", "AllowSizeCols" ],
        [ "formatRows", "AllowSizeRows" ],
        [ "insertColumns", "AllowInsertCols" ],
        [ "insertRows", "AllowInsertRows" ],
        [ "insertHyperlinks", "AllowInsertHyperlinks" ],
        [ "deleteColumns", "AllowDeleteCols" ],
        [ "deleteRows", "AllowDeleteRows" ],
        [ "sort", "AllowSort" ],
        [ "autoFilter", "AllowFilter" ],
        [ "pivotTables", "AllowUsePivotTables" ]
      ].forEach(function(x) { if(ws['!protect'][x[0]]) o.push("<"+x[1]+"/>"); });
    }

    if(o.length == 0) return "";
    return writextag("WorksheetOptions", o.join(""), {xmlns:XLMLNS.x});
  }
  function write_ws_xlml_comment(comments) {
    return comments.map(function(c) {
      // TODO: formatted text
      var t = xlml_unfixstr(c.t||"");
      var d =writextag("ss:Data", t, {"xmlns":"http://www.w3.org/TR/REC-html40"});
      return writextag("Comment", d, {"ss:Author":c.a});
    }).join("");
  }
  function write_ws_xlml_cell(cell, ref, ws, opts, idx, wb, addr){
    if(!cell || (cell.v == undefined && cell.f == undefined)) return "";

    var attr = {};
    if(cell.f) attr["ss:Formula"] = "=" + escapexml(a1_to_rc(cell.f, addr));
    if(cell.F && cell.F.slice(0, ref.length) == ref) {
      var end = decode_cell(cell.F.slice(ref.length + 1));
      attr["ss:ArrayRange"] = "RC:R" + (end.r == addr.r ? "" : "[" + (end.r - addr.r) + "]") + "C" + (end.c == addr.c ? "" : "[" + (end.c - addr.c) + "]");
    }

    if(cell.l && cell.l.Target) {
      attr["ss:HRef"] = escapexml(cell.l.Target);
      if(cell.l.Tooltip) attr["x:HRefScreenTip"] = escapexml(cell.l.Tooltip);
    }

    if(ws['!merges']) {
      var marr = ws['!merges'];
      for(var mi = 0; mi != marr.length; ++mi) {
        if(marr[mi].s.c != addr.c || marr[mi].s.r != addr.r) continue;
        if(marr[mi].e.c > marr[mi].s.c) attr['ss:MergeAcross'] = marr[mi].e.c - marr[mi].s.c;
        if(marr[mi].e.r > marr[mi].s.r) attr['ss:MergeDown'] = marr[mi].e.r - marr[mi].s.r;
      }
    }

    var t = "", p = "";
    switch(cell.t) {
      case 'z': return "";
      case 'n': t = 'Number'; p = String(cell.v); break;
      case 'b': t = 'Boolean'; p = (cell.v ? "1" : "0"); break;
      case 'e': t = 'Error'; p = BErr[cell.v]; break;
      case 'd': t = 'DateTime'; p = new Date(cell.v).toISOString(); if(cell.z == null) cell.z = cell.z || SSF._table[14]; break;
      case 's': t = 'String'; p = escapexlml(cell.v||""); break;
    }
    /* TODO: cell style */
    var os = get_cell_style(opts.cellXfs, cell, opts);
    attr["ss:StyleID"] = "s" + (21+os);
    attr["ss:Index"] = addr.c + 1;
    var _v = (cell.v != null ? p : "");
    var m = '<Data ss:Type="' + t + '">' + _v + '</Data>';

    if((cell.c||[]).length > 0) m += write_ws_xlml_comment(cell.c);

    return writextag("Cell", m, attr);
  }
  function write_ws_xlml_row(R, row) {
    var o = '<Row ss:Index="' + (R+1) + '"';
    if(row) {
      if(row.hpt && !row.hpx) row.hpx = pt2px(row.hpt);
      if(row.hpx) o += ' ss:AutoFitHeight="0" ss:Height="' + row.hpx + '"';
      if(row.hidden) o += ' ss:Hidden="1"';
    }
    return o + '>';
  }
  /* TODO */
  function write_ws_xlml_table(ws, opts, idx, wb) {
    if(!ws['!ref']) return "";
    var range = safe_decode_range(ws['!ref']);
    var marr = ws['!merges'] || [], mi = 0;
    var o = [];
    if(ws['!cols']) ws['!cols'].forEach(function(n, i) {
      process_col(n);
      var w = !!n.width;
      var p = col_obj_w(i, n);
      var k = {"ss:Index":i+1};
      if(w) k['ss:Width'] = width2px(p.width);
      if(n.hidden) k['ss:Hidden']="1";
      o.push(writextag("Column",null,k));
    });
    var dense = Array.isArray(ws);
    for(var R = range.s.r; R <= range.e.r; ++R) {
      var row = [write_ws_xlml_row(R, (ws['!rows']||[])[R])];
      for(var C = range.s.c; C <= range.e.c; ++C) {
        var skip = false;
        for(mi = 0; mi != marr.length; ++mi) {
          if(marr[mi].s.c > C) continue;
          if(marr[mi].s.r > R) continue;
          if(marr[mi].e.c < C) continue;
          if(marr[mi].e.r < R) continue;
          if(marr[mi].s.c != C || marr[mi].s.r != R) skip = true;
          break;
        }
        if(skip) continue;
        var addr = {r:R,c:C};
        var ref = encode_cell(addr), cell = dense ? (ws[R]||[])[C] : ws[ref];
        row.push(write_ws_xlml_cell(cell, ref, ws, opts, idx, wb, addr));
      }
      row.push("</Row>");
      if(row.length > 2) o.push(row.join(""));
    }
    return o.join("");
  }
  function write_ws_xlml(idx, opts, wb) {
    var o = [];
    var s = wb.SheetNames[idx];
    var ws = wb.Sheets[s];

    var t = ws ? write_ws_xlml_names(ws, opts, idx, wb) : "";
    if(t.length > 0) o.push("<Names>" + t + "</Names>");

    /* Table */
    t = ws ? write_ws_xlml_table(ws, opts, idx, wb) : "";
    if(t.length > 0) o.push("<Table>" + t + "</Table>");

    /* WorksheetOptions */
    o.push(write_ws_xlml_wsopts(ws, opts, idx, wb));

    return o.join("");
  }
  function write_xlml(wb, opts) {
    if(!opts) opts = {};
    if(!wb.SSF) wb.SSF = SSF.get_table();
    if(wb.SSF) {
      make_ssf(SSF); SSF.load_table(wb.SSF);
      // $FlowIgnore
      opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
      opts.ssf = wb.SSF;
      opts.cellXfs = [];
      get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});
    }
    var d = [];
    d.push(write_props_xlml(wb, opts));
    d.push(write_wb_xlml(wb, opts));
    d.push("");
    d.push("");
    for(var i = 0; i < wb.SheetNames.length; ++i)
      d.push(writextag("Worksheet", write_ws_xlml(i, opts, wb), {"ss:Name":escapexml(wb.SheetNames[i])}));
    d[2] = write_sty_xlml(wb, opts);
    d[3] = write_names_xlml(wb, opts);
    return XML_HEADER + writextag("Workbook", d.join(""), {
      'xmlns':      XLMLNS.ss,
      'xmlns:o':    XLMLNS.o,
      'xmlns:x':    XLMLNS.x,
      'xmlns:ss':   XLMLNS.ss,
      'xmlns:dt':   XLMLNS.dt,
      'xmlns:html': XLMLNS.html
    });
  }
  /* [MS-OLEDS] 2.3.8 CompObjStream */
  function parse_compobj(obj) {
    var v = {};
    var o = obj.content;
    /* [MS-OLEDS] 2.3.7 CompObjHeader -- All fields MUST be ignored */
    o.l = 28;

    v.AnsiUserType = o.read_shift(0, "lpstr-ansi");
    v.AnsiClipboardFormat = parse_ClipboardFormatOrAnsiString(o);

    if(o.length - o.l <= 4) return v;

    var m = o.read_shift(4);
    if(m == 0 || m > 40) return v;
    o.l-=4; v.Reserved1 = o.read_shift(0, "lpstr-ansi");

    if(o.length - o.l <= 4) return v;
    m = o.read_shift(4);
    if(m !== 0x71b239f4) return v;
    v.UnicodeClipboardFormat = parse_ClipboardFormatOrUnicodeString(o);

    m = o.read_shift(4);
    if(m == 0 || m > 40) return v;
    o.l-=4; v.Reserved2 = o.read_shift(0, "lpwstr");
  }

  /*
	Continue logic for:
	- 2.4.58 Continue
	- 2.4.59 ContinueBigName
	- 2.4.60 ContinueFrt
	- 2.4.61 ContinueFrt11
	- 2.4.62 ContinueFrt12
*/
  function slurp(R, blob, length, opts) {
    var l = length;
    var bufs = [];
    var d = blob.slice(blob.l,blob.l+l);
    if(opts && opts.enc && opts.enc.insitu) switch(R.n) {
      case 'BOF': case 'FilePass': case 'FileLock': case 'InterfaceHdr': case 'RRDInfo': case 'RRDHead': case 'UsrExcl': break;
      default:
        if(d.length === 0) break;
        opts.enc.insitu(d);
    }
    bufs.push(d);
    blob.l += l;
    var next = (XLSRecordEnum[__readUInt16LE(blob,blob.l)]);
    var start = 0;
    while(next != null && next.n.slice(0,8) === 'Continue') {
      l = __readUInt16LE(blob,blob.l+2);
      start = blob.l + 4;
      if(next.n == 'ContinueFrt') start += 4;
      else if(next.n.slice(0,11) == 'ContinueFrt') start += 12;
      bufs.push(blob.slice(start,blob.l+4+l));
      blob.l += 4+l;
      next = (XLSRecordEnum[__readUInt16LE(blob, blob.l)]);
    }
    var b = (bconcat(bufs));
    prep_blob(b, 0);
    var ll = 0; b.lens = [];
    for(var j = 0; j < bufs.length; ++j) { b.lens.push(ll); ll += bufs[j].length; }
    return R.f(b, b.length, opts);
  }

  function safe_format_xf(p, opts, date1904) {
    if(p.t === 'z') return;
    if(!p.XF) return;
    var fmtid = 0;
    try {
      fmtid = p.z || p.XF.numFmtId || 0;
      if(opts.cellNF) p.z = SSF._table[fmtid];
    } catch(e) { if(opts.WTF) throw e; }
    if(!opts || opts.cellText !== false) try {
      if(p.t === 'e') { p.w = p.w || BErr[p.v]; }
      else if(fmtid === 0 || fmtid == "General") {
        if(p.t === 'n') {
          if((p.v|0) === p.v) p.w = SSF._general_int(p.v);
          else p.w = SSF._general_num(p.v);
        }
        else p.w = SSF._general(p.v);
      }
      else p.w = SSF.format(fmtid,p.v, {date1904:!!date1904});
    } catch(e) { if(opts.WTF) throw e; }
    if(opts.cellDates && fmtid && p.t == 'n' && SSF.is_date(SSF._table[fmtid] || String(fmtid))) {
      var _d = SSF.parse_date_code(p.v); if(_d) { p.t = 'd'; p.v = new Date(_d.y, _d.m-1,_d.d,_d.H,_d.M,_d.S,_d.u); }
    }
  }

  function make_cell(val, ixfe, t) {
    return ({v:val, ixfe:ixfe, t:t});
  }

// 2.3.2
  function parse_workbook(blob, options) {
    var wb = ({opts:{}});
    var Sheets = {};
    if(DENSE != null && options.dense == null) options.dense = DENSE;
    var out = ((options.dense ? [] : {}));
    var Directory = {};
    var range = ({});
    var last_formula = null;
    var sst = ([]);
    var cur_sheet = "";
    var Preamble = {};
    var lastcell, last_cell = "", cc, cmnt, rngC, rngR;
    var sharedf = {};
    var arrayf = [];
    var temp_val;
    var country;
    var cell_valid = true;
    var XFs = []; /* XF records */
    var palette = [];
    var Workbook = ({ Sheets:[], WBProps:{date1904:false}, Views:[{}] }), wsprops = {};
    var get_rgb = function getrgb(icv) {
      if(icv < 8) return XLSIcv[icv];
      if(icv < 64) return palette[icv-8] || XLSIcv[icv];
      return XLSIcv[icv];
    };
    var process_cell_style = function pcs(cell, line, options) {
      var xfd = line.XF.data;
      if(!xfd || !xfd.patternType || !options || !options.cellStyles) return;
      line.s = ({});
      line.s.patternType = xfd.patternType;
      var t;
      if((t = rgb2Hex(get_rgb(xfd.icvFore)))) { line.s.fgColor = {rgb:t}; }
      if((t = rgb2Hex(get_rgb(xfd.icvBack)))) { line.s.bgColor = {rgb:t}; }
    };
    var addcell = function addcell(cell, line, options) {
      if(file_depth > 1) return;
      if(options.sheetRows && cell.r >= options.sheetRows) cell_valid = false;
      if(!cell_valid) return;
      if(options.cellStyles && line.XF && line.XF.data) process_cell_style(cell, line, options);
      delete line.ixfe; delete line.XF;
      lastcell = cell;
      last_cell = encode_cell(cell);
      if(!range || !range.s || !range.e) range = {s:{r:0,c:0},e:{r:0,c:0}};
      if(cell.r < range.s.r) range.s.r = cell.r;
      if(cell.c < range.s.c) range.s.c = cell.c;
      if(cell.r + 1 > range.e.r) range.e.r = cell.r + 1;
      if(cell.c + 1 > range.e.c) range.e.c = cell.c + 1;
      if(options.cellFormula && line.f) {
        for(var afi = 0; afi < arrayf.length; ++afi) {
          if(arrayf[afi][0].s.c > cell.c || arrayf[afi][0].s.r > cell.r) continue;
          if(arrayf[afi][0].e.c < cell.c || arrayf[afi][0].e.r < cell.r) continue;
          line.F = encode_range(arrayf[afi][0]);
          if(arrayf[afi][0].s.c != cell.c || arrayf[afi][0].s.r != cell.r) delete line.f;
          if(line.f) line.f = "" + stringify_formula(arrayf[afi][1], range, cell, supbooks, opts);
          break;
        }
      }
      {
        if(options.dense) {
          if(!out[cell.r]) out[cell.r] = [];
          out[cell.r][cell.c] = line;
        } else out[last_cell] = line;
      }
    };
    var opts = ({
      enc: false, // encrypted
      sbcch: 0, // cch in the preceding SupBook
      snames: [], // sheetnames
      sharedf: sharedf, // shared formulae by address
      arrayf: arrayf, // array formulae array
      rrtabid: [], // RRTabId
      lastuser: "", // Last User from WriteAccess
      biff: 8, // BIFF version
      codepage: 0, // CP from CodePage record
      winlocked: 0, // fLockWn from WinProtect
      cellStyles: !!options && !!options.cellStyles,
      WTF: !!options && !!options.wtf
    });
    if(options.password) opts.password = options.password;
    var themes;
    var merges = [];
    var objects = [];
    var colinfo = [], rowinfo = [];
    // eslint-disable-next-line no-unused-vars
    var defwidth = 0, defheight = 0; // twips / MDW respectively
    var seencol = false;
    var supbooks = ([]); // 1-indexed, will hold extern names
    supbooks.SheetNames = opts.snames;
    supbooks.sharedf = opts.sharedf;
    supbooks.arrayf = opts.arrayf;
    supbooks.names = [];
    supbooks.XTI = [];
    var last_Rn = '';
    var file_depth = 0; /* TODO: make a real stack */
    var BIFF2Fmt = 0, BIFF2FmtTable = [];
    var FilterDatabases = []; /* TODO: sort out supbooks and process elsewhere */
    var last_lbl;

    /* explicit override for some broken writers */
    opts.codepage = 1200;
    set_cp(1200);
    var seen_codepage = false;
    while(blob.l < blob.length - 1) {
      var s = blob.l;
      var RecordType = blob.read_shift(2);
      if(RecordType === 0 && last_Rn === 'EOF') break;
      var length = (blob.l === blob.length ? 0 : blob.read_shift(2));
      var R = XLSRecordEnum[RecordType];
      //console.log(RecordType.toString(16), RecordType, R, blob.l, length, blob.length);
      //if(!R) console.log(blob.slice(blob.l, blob.l + length));
      if(R && R.f) {
        if(options.bookSheets) {
          if(last_Rn === 'BoundSheet8' && R.n !== 'BoundSheet8') break;
        }
        last_Rn = R.n;
        if(R.r === 2 || R.r == 12) {
          var rt = blob.read_shift(2); length -= 2;
          if(!opts.enc && rt !== RecordType && (((rt&0xFF)<<8)|(rt>>8)) !== RecordType) throw new Error("rt mismatch: " + rt + "!=" + RecordType);
          if(R.r == 12){ blob.l += 10; length -= 10; } // skip FRT
        }
        //console.error(R,blob.l,length,blob.length);
        var val;
        if(R.n === 'EOF') val = R.f(blob, length, opts);
        else val = slurp(R, blob, length, opts);
        var Rn = R.n;
        if(file_depth == 0 && Rn != 'BOF') continue;
        /* nested switch statements to workaround V8 128 limit */
        switch(Rn) {
          /* Workbook Options */
          case 'Date1904':
            wb.opts.Date1904 = Workbook.WBProps.date1904 = val; break;
          case 'WriteProtect': wb.opts.WriteProtect = true; break;
          case 'FilePass':
            if(!opts.enc) blob.l = 0;
            opts.enc = val;
            if(!options.password) throw new Error("File is password-protected");
            if(val.valid == null) throw new Error("Encryption scheme unsupported");
            if(!val.valid) throw new Error("Password is incorrect");
            break;
          case 'WriteAccess': opts.lastuser = val; break;
          case 'FileSharing': break; //TODO
          case 'CodePage':
            /* overrides based on test cases */
            switch(val) {
              case 0x5212: val =  1200; break;
              case 0x8000: val = 10000; break;
              case 0x8001: val =  1252; break;
            }
            set_cp(opts.codepage = val);
            seen_codepage = true;
            break;
          case 'RRTabId': opts.rrtabid = val; break;
          case 'WinProtect': opts.winlocked = val; break;
          case 'Template': break; // TODO
          case 'BookBool': break; // TODO
          case 'UsesELFs': break;
          case 'MTRSettings': break;
          case 'RefreshAll':
          case 'CalcCount':
          case 'CalcDelta':
          case 'CalcIter':
          case 'CalcMode':
          case 'CalcPrecision':
          case 'CalcSaveRecalc':
            wb.opts[Rn] = val; break;
          case 'CalcRefMode': opts.CalcRefMode = val; break; // TODO: implement R1C1
          case 'Uncalced': break;
          case 'ForceFullCalculation': wb.opts.FullCalc = val; break;
          case 'WsBool':
            if(val.fDialog) out["!type"] = "dialog";
            break; // TODO
          case 'XF':
            XFs.push(val); break;
          case 'ExtSST': break; // TODO
          case 'BookExt': break; // TODO
          case 'RichTextStream': break;
          case 'BkHim': break;

          case 'SupBook':
            supbooks.push([val]);
            supbooks[supbooks.length-1].XTI = [];
            break;
          case 'ExternName':
            supbooks[supbooks.length-1].push(val);
            break;
          case 'Index': break; // TODO
          case 'Lbl':
            last_lbl = ({
              Name: val.Name,
              Ref: stringify_formula(val.rgce,range,null,supbooks,opts)
            });
            if(val.itab > 0) last_lbl.Sheet = val.itab - 1;
            supbooks.names.push(last_lbl);
            if(!supbooks[0]) { supbooks[0] = []; supbooks[0].XTI = []; }
            supbooks[supbooks.length-1].push(val);
            if(val.Name == "_xlnm._FilterDatabase" && val.itab > 0)
              if(val.rgce && val.rgce[0] && val.rgce[0][0] && val.rgce[0][0][0] == 'PtgArea3d')
                FilterDatabases[val.itab - 1] = { ref: encode_range(val.rgce[0][0][1][2]) };
            break;
          case 'ExternCount': opts.ExternCount = val; break;
          case 'ExternSheet':
            if(supbooks.length == 0) { supbooks[0] = []; supbooks[0].XTI = []; }
            supbooks[supbooks.length - 1].XTI = supbooks[supbooks.length - 1].XTI.concat(val); supbooks.XTI = supbooks.XTI.concat(val); break;
          case 'NameCmt':
            /* TODO: search for correct name */
            if(opts.biff < 8) break;
            if(last_lbl != null) last_lbl.Comment = val[1];
            break;

          case 'Protect': out["!protect"] = val; break; /* for sheet or book */
          case 'Password': if(val !== 0 && opts.WTF) console.error("Password verifier: " + val); break;
          case 'Prot4Rev': case 'Prot4RevPass': break; /*TODO: Revision Control*/

          case 'BoundSheet8': {
            Directory[val.pos] = val;
            opts.snames.push(val.name);
          } break;
          case 'EOF': {
            if(--file_depth) break;
            if(range.e) {
              if(range.e.r > 0 && range.e.c > 0) {
                range.e.r--; range.e.c--;
                out["!ref"] = encode_range(range);
                if(options.sheetRows && options.sheetRows <= range.e.r) {
                  var tmpri = range.e.r;
                  range.e.r = options.sheetRows - 1;
                  out["!fullref"] = out["!ref"];
                  out["!ref"] = encode_range(range);
                  range.e.r = tmpri;
                }
                range.e.r++; range.e.c++;
              }
              if(merges.length > 0) out["!merges"] = merges;
              if(objects.length > 0) out["!objects"] = objects;
              if(colinfo.length > 0) out["!cols"] = colinfo;
              if(rowinfo.length > 0) out["!rows"] = rowinfo;
              Workbook.Sheets.push(wsprops);
            }
            if(cur_sheet === "") Preamble = out; else Sheets[cur_sheet] = out;
            out = ((options.dense ? [] : {}));
          } break;
          case 'BOF': {
            if(opts.biff === 8) opts.biff = {
              0x0009:2,
              0x0209:3,
              0x0409:4
            }[RecordType] || {
              0x0200:2,
              0x0300:3,
              0x0400:4,
              0x0500:5,
              0x0600:8,
              0x0002:2,
              0x0007:2
            }[val.BIFFVer] || 8;
            if(opts.biff == 8 && val.BIFFVer == 0 && val.dt == 16) opts.biff = 2;
            if(file_depth++) break;
            cell_valid = true;
            out = ((options.dense ? [] : {}));

            if(opts.biff < 8 && !seen_codepage) { seen_codepage = true; set_cp(opts.codepage = options.codepage || 1252); }
            if(opts.biff < 5) {
              if(cur_sheet === "") cur_sheet = "Sheet1";
              range = {s:{r:0,c:0},e:{r:0,c:0}};
              /* fake BoundSheet8 */
              var fakebs8 = {pos: blob.l - length, name:cur_sheet};
              Directory[fakebs8.pos] = fakebs8;
              opts.snames.push(cur_sheet);
            }
            else cur_sheet = (Directory[s] || {name:""}).name;
            if(val.dt == 0x20) out["!type"] = "chart";
            if(val.dt == 0x40) out["!type"] = "macro";
            merges = [];
            objects = [];
            opts.arrayf = arrayf = [];
            colinfo = []; rowinfo = [];
            defwidth = defheight = 0;
            seencol = false;
            wsprops = {Hidden:(Directory[s]||{hs:0}).hs, name:cur_sheet };
          } break;

          case 'Number': case 'BIFF2NUM': case 'BIFF2INT': {
            if(out["!type"] == "chart") if(options.dense ? (out[val.r]||[])[val.c]: out[encode_cell({c:val.c, r:val.r})]) ++val.c;
            temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe]||{}, v:val.val, t:'n'});
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
          } break;
          case 'BoolErr': {
            temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.val, t:val.t});
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
          } break;
          case 'RK': {
            temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], v:val.rknum, t:'n'});
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
          } break;
          case 'MulRk': {
            for(var j = val.c; j <= val.C; ++j) {
              var ixfe = val.rkrec[j-val.c][0];
              temp_val= ({ixfe:ixfe, XF:XFs[ixfe], v:val.rkrec[j-val.c][1], t:'n'});
              if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
              safe_format_xf(temp_val, options, wb.opts.Date1904);
              addcell({c:j, r:val.r}, temp_val, options);
            }
          } break;
          case 'Formula': {
            if(val.val == 'String') { last_formula = val; break; }
            temp_val = make_cell(val.val, val.cell.ixfe, val.tt);
            temp_val.XF = XFs[temp_val.ixfe];
            if(options.cellFormula) {
              var _f = val.formula;
              if(_f && _f[0] && _f[0][0] && _f[0][0][0] == 'PtgExp') {
                var _fr = _f[0][0][1][0], _fc = _f[0][0][1][1];
                var _fe = encode_cell({r:_fr, c:_fc});
                if(sharedf[_fe]) temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
                else temp_val.F = ((options.dense ? (out[_fr]||[])[_fc]: out[_fe]) || {}).F;
              } else temp_val.f = ""+stringify_formula(val.formula,range,val.cell,supbooks, opts);
            }
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell(val.cell, temp_val, options);
            last_formula = val;
          } break;
          case 'String': {
            if(last_formula) { /* technically always true */
              last_formula.val = val;
              temp_val = make_cell(val, last_formula.cell.ixfe, 's');
              temp_val.XF = XFs[temp_val.ixfe];
              if(options.cellFormula) {
                temp_val.f = ""+stringify_formula(last_formula.formula, range, last_formula.cell, supbooks, opts);
              }
              if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
              safe_format_xf(temp_val, options, wb.opts.Date1904);
              addcell(last_formula.cell, temp_val, options);
              last_formula = null;
            } else throw new Error("String record expects Formula");
          } break;
          case 'Array': {
            arrayf.push(val);
            var _arraystart = encode_cell(val[0].s);
            cc = options.dense ? (out[val[0].s.r]||[])[val[0].s.c] : out[_arraystart];
            if(options.cellFormula && cc) {
              if(!last_formula) break; /* technically unreachable */
              if(!_arraystart || !cc) break;
              cc.f = ""+stringify_formula(val[1], range, val[0], supbooks, opts);
              cc.F = encode_range(val[0]);
            }
          } break;
          case 'ShrFmla': {
            if(!cell_valid) break;
            if(!options.cellFormula) break;
            if(last_cell) {
              /* TODO: capture range */
              if(!last_formula) break; /* technically unreachable */
              sharedf[encode_cell(last_formula.cell)]= val[0];
              cc = options.dense ? (out[last_formula.cell.r]||[])[last_formula.cell.c] : out[encode_cell(last_formula.cell)];
              (cc||{}).f = ""+stringify_formula(val[0], range, lastcell, supbooks, opts);
            }
          } break;
          case 'LabelSst':
            temp_val=make_cell(sst[val.isst].t, val.ixfe, 's');
            temp_val.XF = XFs[temp_val.ixfe];
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
            break;
          case 'Blank': if(options.sheetStubs) {
            temp_val = ({ixfe: val.ixfe, XF: XFs[val.ixfe], t:'z'});
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
          } break;
          case 'MulBlank': if(options.sheetStubs) {
            for(var _j = val.c; _j <= val.C; ++_j) {
              var _ixfe = val.ixfe[_j-val.c];
              temp_val= ({ixfe:_ixfe, XF:XFs[_ixfe], t:'z'});
              if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
              safe_format_xf(temp_val, options, wb.opts.Date1904);
              addcell({c:_j, r:val.r}, temp_val, options);
            }
          } break;
          case 'RString':
          case 'Label': case 'BIFF2STR':
            temp_val=make_cell(val.val, val.ixfe, 's');
            temp_val.XF = XFs[temp_val.ixfe];
            if(BIFF2Fmt > 0) temp_val.z = BIFF2FmtTable[(temp_val.ixfe>>8) & 0x1F];
            safe_format_xf(temp_val, options, wb.opts.Date1904);
            addcell({c:val.c, r:val.r}, temp_val, options);
            break;

          case 'Dimensions': {
            if(file_depth === 1) range = val; /* TODO: stack */
          } break;
          case 'SST': {
            sst = val;
          } break;
          case 'Format': { /* val = [id, fmt] */
            if(opts.biff == 4) {
              BIFF2FmtTable[BIFF2Fmt++] = val[1];
              for(var b4idx = 0; b4idx < BIFF2Fmt + 163; ++b4idx) if(SSF._table[b4idx] == val[1]) break;
              if(b4idx >= 163) SSF.load(val[1], BIFF2Fmt + 163);
            }
            else SSF.load(val[1], val[0]);
          } break;
          case 'BIFF2FORMAT': {
            BIFF2FmtTable[BIFF2Fmt++] = val;
            for(var b2idx = 0; b2idx < BIFF2Fmt + 163; ++b2idx) if(SSF._table[b2idx] == val) break;
            if(b2idx >= 163) SSF.load(val, BIFF2Fmt + 163);
          } break;

          case 'MergeCells': merges = merges.concat(val); break;

          case 'Obj': objects[val.cmo[0]] = opts.lastobj = val; break;
          case 'TxO': opts.lastobj.TxO = val; break;
          case 'ImData': opts.lastobj.ImData = val; break;

          case 'HLink': {
            for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
              for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
                cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
                if(cc) cc.l = val[1];
              }
          } break;
          case 'HLinkTooltip': {
            for(rngR = val[0].s.r; rngR <= val[0].e.r; ++rngR)
              for(rngC = val[0].s.c; rngC <= val[0].e.c; ++rngC) {
                cc = options.dense ? (out[rngR]||[])[rngC] : out[encode_cell({c:rngC,r:rngR})];
                if(cc && cc.l) cc.l.Tooltip = val[1];
              }
          } break;

          /* Comments */
          case 'Note': {
            if(opts.biff <= 5 && opts.biff >= 2) break; /* TODO: BIFF5 */
            cc = options.dense ? (out[val[0].r]||[])[val[0].c] : out[encode_cell(val[0])];
            var noteobj = objects[val[2]];
            if(!cc) break;
            if(!cc.c) cc.c = [];
            cmnt = {a:val[1],t:noteobj.TxO.t};
            cc.c.push(cmnt);
          } break;

          default: switch(R.n) { /* nested */
            case 'ClrtClient': break;
            case 'XFExt': update_xfext(XFs[val.ixfe], val.ext); break;

            case 'DefColWidth': defwidth = val; break;
            case 'DefaultRowHeight': defheight = val[1]; break; // TODO: flags

            case 'ColInfo': {
              if(!opts.cellStyles) break;
              while(val.e >= val.s) {
                colinfo[val.e--] = { width: val.w/256 };
                if(!seencol) { seencol = true; find_mdw_colw(val.w/256); }
                process_col(colinfo[val.e+1]);
              }
            } break;
            case 'Row': {
              var rowobj = {};
              if(val.level != null) { rowinfo[val.r] = rowobj; rowobj.level = val.level; }
              if(val.hidden) { rowinfo[val.r] = rowobj; rowobj.hidden = true; }
              if(val.hpt) {
                rowinfo[val.r] = rowobj;
                rowobj.hpt = val.hpt; rowobj.hpx = pt2px(val.hpt);
              }
            } break;

            case 'LeftMargin':
            case 'RightMargin':
            case 'TopMargin':
            case 'BottomMargin':
              if(!out['!margins']) default_margins(out['!margins'] = {});
              out['!margins'][Rn.slice(0,-6).toLowerCase()] = val;
              break;

            case 'Setup': // TODO
              if(!out['!margins']) default_margins(out['!margins'] = {});
              out['!margins'].header = val.header;
              out['!margins'].footer = val.footer;
              break;

            case 'Window2': // TODO
              // $FlowIgnore
              if(val.RTL) Workbook.Views[0].RTL = true;
              break;

            case 'Header': break; // TODO
            case 'Footer': break; // TODO
            case 'HCenter': break; // TODO
            case 'VCenter': break; // TODO
            case 'Pls': break; // TODO
            case 'GCW': break;
            case 'LHRecord': break;
            case 'DBCell': break; // TODO
            case 'EntExU2': break; // TODO
            case 'SxView': break; // TODO
            case 'Sxvd': break; // TODO
            case 'SXVI': break; // TODO
            case 'SXVDEx': break; // TODO
            case 'SxIvd': break; // TODO
            case 'SXString': break; // TODO
            case 'Sync': break;
            case 'Addin': break;
            case 'SXDI': break; // TODO
            case 'SXLI': break; // TODO
            case 'SXEx': break; // TODO
            case 'QsiSXTag': break; // TODO
            case 'Selection': break;
            case 'Feat': break;
            case 'FeatHdr': case 'FeatHdr11': break;
            case 'Feature11': case 'Feature12': case 'List12': break;
            case 'Country': country = val; break;
            case 'RecalcId': break;
            case 'DxGCol': break; // TODO: htmlify
            case 'Fbi': case 'Fbi2': case 'GelFrame': break;
            case 'Font': break; // TODO
            case 'XFCRC': break; // TODO
            case 'Style': break; // TODO
            case 'StyleExt': break; // TODO
            case 'Palette': palette = val; break;
            case 'Theme': themes = val; break;
            /* Protection */
            case 'ScenarioProtect': break;
            case 'ObjProtect': break;

            /* Conditional Formatting */
            case 'CondFmt12': break;

            /* Table */
            case 'Table': break; // TODO
            case 'TableStyles': break; // TODO
            case 'TableStyle': break; // TODO
            case 'TableStyleElement': break; // TODO

            /* PivotTable */
            case 'SXStreamID': break; // TODO
            case 'SXVS': break; // TODO
            case 'DConRef': break; // TODO
            case 'SXAddl': break; // TODO
            case 'DConBin': break; // TODO
            case 'DConName': break; // TODO
            case 'SXPI': break; // TODO
            case 'SxFormat': break; // TODO
            case 'SxSelect': break; // TODO
            case 'SxRule': break; // TODO
            case 'SxFilt': break; // TODO
            case 'SxItm': break; // TODO
            case 'SxDXF': break; // TODO

            /* Scenario Manager */
            case 'ScenMan': break;

            /* Data Consolidation */
            case 'DCon': break;

            /* Watched Cell */
            case 'CellWatch': break;

            /* Print Settings */
            case 'PrintRowCol': break;
            case 'PrintGrid': break;
            case 'PrintSize': break;

            case 'XCT': break;
            case 'CRN': break;

            case 'Scl': {
              //console.log("Zoom Level:", val[0]/val[1],val);
            } break;
            case 'SheetExt': {
              /* empty */
            } break;
            case 'SheetExtOptional': {
              /* empty */
            } break;

            /* VBA */
            case 'ObNoMacros': {
              /* empty */
            } break;
            case 'ObProj': {
              /* empty */
            } break;
            case 'CodeName': {
              if(!cur_sheet) Workbook.WBProps.CodeName = val || "ThisWorkbook";
              else wsprops.CodeName = val || wsprops.name;
            } break;
            case 'GUIDTypeLib': {
              /* empty */
            } break;

            case 'WOpt': break; // TODO: WTF?
            case 'PhoneticInfo': break;

            case 'OleObjectSize': break;

            /* Differential Formatting */
            case 'DXF': case 'DXFN': case 'DXFN12': case 'DXFN12List': case 'DXFN12NoCB': break;

            /* Data Validation */
            case 'Dv': case 'DVal': break;

            /* Data Series */
            case 'BRAI': case 'Series': case 'SeriesText': break;

            /* Data Connection */
            case 'DConn': break;
            case 'DbOrParamQry': break;
            case 'DBQueryExt': break;

            case 'OleDbConn': break;
            case 'ExtString': break;

            /* Formatting */
            case 'IFmtRecord': break;
            case 'CondFmt': case 'CF': case 'CF12': case 'CFEx': break;

            /* Explicitly Ignored */
            case 'Excel9File': break;
            case 'Units': break;
            case 'InterfaceHdr': case 'Mms': case 'InterfaceEnd': case 'DSF': break;
            case 'BuiltInFnGroupCount': /* 2.4.30 0x0E or 0x10 but excel 2011 generates 0x11? */ break;
            /* View Stuff */
            case 'Window1': case 'HideObj': case 'GridSet': case 'Guts':
            case 'UserBView': case 'UserSViewBegin': case 'UserSViewEnd':
            case 'Pane': break;
            default: switch(R.n) { /* nested */
              /* Chart */
              case 'Dat':
              case 'Begin': case 'End':
              case 'StartBlock': case 'EndBlock':
              case 'Frame': case 'Area':
              case 'Axis': case 'AxisLine': case 'Tick': break;
              case 'AxesUsed':
              case 'CrtLayout12': case 'CrtLayout12A': case 'CrtLink': case 'CrtLine': case 'CrtMlFrt': case 'CrtMlFrtContinue': break;
              case 'LineFormat': case 'AreaFormat':
              case 'Chart': case 'Chart3d': case 'Chart3DBarShape': case 'ChartFormat': case 'ChartFrtInfo': break;
              case 'PlotArea': case 'PlotGrowth': break;
              case 'SeriesList': case 'SerParent': case 'SerAuxTrend': break;
              case 'DataFormat': case 'SerToCrt': case 'FontX': break;
              case 'CatSerRange': case 'AxcExt': case 'SerFmt': break;
              case 'ShtProps': break;
              case 'DefaultText': case 'Text': case 'CatLab': break;
              case 'DataLabExtContents': break;
              case 'Legend': case 'LegendException': break;
              case 'Pie': case 'Scatter': break;
              case 'PieFormat': case 'MarkerFormat': break;
              case 'StartObject': case 'EndObject': break;
              case 'AlRuns': case 'ObjectLink': break;
              case 'SIIndex': break;
              case 'AttachedLabel': case 'YMult': break;

              /* Chart Group */
              case 'Line': case 'Bar': break;
              case 'Surf': break;

              /* Axis Group */
              case 'AxisParent': break;
              case 'Pos': break;
              case 'ValueRange': break;

              /* Pivot Chart */
              case 'SXViewEx9': break; // TODO
              case 'SXViewLink': break;
              case 'PivotChartBits': break;
              case 'SBaseRef': break;
              case 'TextPropsStream': break;

              /* Chart Misc */
              case 'LnExt': break;
              case 'MkrExt': break;
              case 'CrtCoopt': break;

              /* Query Table */
              case 'Qsi': case 'Qsif': case 'Qsir': case 'QsiSXTag': break;
              case 'TxtQry': break;

              /* Filter */
              case 'FilterMode': break;
              case 'AutoFilter': case 'AutoFilterInfo': break;
              case 'AutoFilter12': break;
              case 'DropDownObjIds': break;
              case 'Sort': break;
              case 'SortData': break;

              /* Drawing */
              case 'ShapePropsStream': break;
              case 'MsoDrawing': case 'MsoDrawingGroup': case 'MsoDrawingSelection': break;
              /* Pub Stuff */
              case 'WebPub': case 'AutoWebPub': break;

              /* Print Stuff */
              case 'HeaderFooter': case 'HFPicture': case 'PLV':
              case 'HorizontalPageBreaks': case 'VerticalPageBreaks': break;
              /* Behavioral */
              case 'Backup': case 'CompressPictures': case 'Compat12': break;

              /* Should not Happen */
              case 'Continue': case 'ContinueFrt12': break;

              /* Future Records */
              case 'FrtFontList': case 'FrtWrapper': break;

              default: switch(R.n) { /* nested */
                /* BIFF5 records */
                case 'TabIdConf': case 'Radar': case 'RadarArea': case 'DropBar': case 'Intl': case 'CoordList': case 'SerAuxErrBar': break;

                /* BIFF2-4 records */
                case 'BIFF2FONTCLR': case 'BIFF2FMTCNT': case 'BIFF2FONTXTRA': break;
                case 'BIFF2XF': case 'BIFF3XF': case 'BIFF4XF': break;
                case 'BIFF4FMTCNT': case 'BIFF2ROW': case 'BIFF2WINDOW2': break;

                /* Miscellaneous */
                case 'SCENARIO': case 'DConBin': case 'PicF': case 'DataLabExt':
                case 'Lel': case 'BopPop': case 'BopPopCustom': case 'RealTimeData':
                case 'Name': break;
                case 'LHNGraph': case 'FnGroupName': case 'AddMenu': case 'LPr': break;
                case 'ListObj': case 'ListField': break;
                case 'RRSort': break;
                case 'BigName': break;
                case 'ToolbarHdr': case 'ToolbarEnd': break;
                case 'DDEObjName': break;
                case 'FRTArchId$': break;
                default: if(options.WTF) throw 'Unrecognized Record ' + R.n;
              }}}}
      } else blob.l += length;
    }
    wb.SheetNames=keys(Directory).sort(function(a,b) { return Number(a) - Number(b); }).map(function(x){return Directory[x].name;});
    if(!options.bookSheets) wb.Sheets=Sheets;
    if(wb.Sheets) FilterDatabases.forEach(function(r,i) { wb.Sheets[wb.SheetNames[i]]['!autofilter'] = r; });
    wb.Preamble=Preamble;
    wb.Strings = sst;
    wb.SSF = SSF.get_table();
    if(opts.enc) wb.Encryption = opts.enc;
    if(themes) wb.Themes = themes;
    wb.Metadata = {};
    if(country !== undefined) wb.Metadata.Country = country;
    if(supbooks.names.length > 0) Workbook.Names = supbooks.names;
    wb.Workbook = Workbook;
    return wb;
  }

  /* TODO: split props*/
  var PSCLSID = {
    SI: "e0859ff2f94f6810ab9108002b27b3d9",
    DSI: "02d5cdd59c2e1b10939708002b2cf9ae",
    UDI: "05d5cdd59c2e1b10939708002b2cf9ae"
  };
  function parse_xls_props(cfb, props, o) {
    /* [MS-OSHARED] 2.3.3.2.2 Document Summary Information Property Set */
    var DSI = CFB.find(cfb, '!DocumentSummaryInformation');
    if(DSI && DSI.size > 0) try {
      var DocSummary = parse_PropertySetStream(DSI, DocSummaryPIDDSI, PSCLSID.DSI);
      for(var d in DocSummary) props[d] = DocSummary[d];
    } catch(e) {if(o.WTF) throw e;/* empty */}

    /* [MS-OSHARED] 2.3.3.2.1 Summary Information Property Set*/
    var SI = CFB.find(cfb, '!SummaryInformation');
    if(SI && SI.size > 0) try {
      var Summary = parse_PropertySetStream(SI, SummaryPIDSI, PSCLSID.SI);
      for(var s in Summary) if(props[s] == null) props[s] = Summary[s];
    } catch(e) {if(o.WTF) throw e;/* empty */}

    if(props.HeadingPairs && props.TitlesOfParts) {
      load_props_pairs(props.HeadingPairs, props.TitlesOfParts, props, o);
      delete props.HeadingPairs; delete props.TitlesOfParts;
    }
  }
  function write_xls_props(wb, cfb) {
    var DSEntries = [], SEntries = [], CEntries = [];
    var i = 0, Keys;
    if(wb.Props) {
      Keys = keys(wb.Props);
      // $FlowIgnore
      for(i = 0; i < Keys.length; ++i) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Props[Keys[i]]]);
    }
    if(wb.Custprops) {
      Keys = keys(wb.Custprops);
      // $FlowIgnore
      for(i = 0; i < Keys.length; ++i) if(!(wb.Props||{}).hasOwnProperty(Keys[i])) (DocSummaryRE.hasOwnProperty(Keys[i]) ? DSEntries : SummaryRE.hasOwnProperty(Keys[i]) ? SEntries : CEntries).push([Keys[i], wb.Custprops[Keys[i]]]);
    }
    var CEntries2 = [];
    for(i = 0; i < CEntries.length; ++i) {
      if(XLSPSSkip.indexOf(CEntries[i][0]) > -1) continue;
      if(CEntries[i][1] == null) continue;
      CEntries2.push(CEntries[i]);
    }
    if(SEntries.length) CFB.utils.cfb_add(cfb, "/\u0005SummaryInformation", write_PropertySetStream(SEntries, PSCLSID.SI, SummaryRE, SummaryPIDSI));
    if(DSEntries.length || CEntries2.length) CFB.utils.cfb_add(cfb, "/\u0005DocumentSummaryInformation", write_PropertySetStream(DSEntries, PSCLSID.DSI, DocSummaryRE, DocSummaryPIDDSI, CEntries2.length ? CEntries2 : null, PSCLSID.UDI));
  }

  function parse_xlscfb(cfb, options) {
    if(!options) options = {};
    fix_read_opts(options);
    reset_cp();
    if(options.codepage) set_ansi(options.codepage);
    var CompObj, WB;
    if(cfb.FullPaths) {
      if(CFB.find(cfb, '/encryption')) throw new Error("File is password-protected");
      CompObj = CFB.find(cfb, '!CompObj');
      WB = CFB.find(cfb, '/Workbook') || CFB.find(cfb, '/Book');
    } else {
      switch(options.type) {
        case 'base64': cfb = s2a(Base64.decode(cfb)); break;
        case 'binary': cfb = s2a(cfb); break;
        case 'buffer': break;
        case 'array': if(!Array.isArray(cfb)) cfb = Array.prototype.slice.call(cfb); break;
      }
      prep_blob(cfb, 0);
      WB = ({content: cfb});
    }
    var WorkbookP;

    var _data;
    if(CompObj) parse_compobj(CompObj);
    if(options.bookProps && !options.bookSheets) WorkbookP = ({});
    else {
      var T = has_buf ? 'buffer' : 'array';
      if(WB && WB.content) WorkbookP = parse_workbook(WB.content, options);
      /* Quattro Pro 7-8 */
      else if((_data=CFB.find(cfb, 'PerfectOffice_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
      /* Quattro Pro 9 */
      else if((_data=CFB.find(cfb, 'NativeContent_MAIN')) && _data.content) WorkbookP = WK_.to_workbook(_data.content, (options.type = T, options));
      else throw new Error("Cannot find Workbook stream");
      if(options.bookVBA && cfb.FullPaths && CFB.find(cfb, '/_VBA_PROJECT_CUR/VBA/dir')) WorkbookP.vbaraw = make_vba_xls(cfb);
    }

    var props = {};
    if(cfb.FullPaths) parse_xls_props(cfb, props, options);

    WorkbookP.Props = WorkbookP.Custprops = props; /* TODO: split up properties */
    if(options.bookFiles) WorkbookP.cfb = cfb;
    /*WorkbookP.CompObjP = CompObjP; // TODO: storage? */
    return WorkbookP;
  }


  function write_xlscfb(wb, opts) {
    var o = opts || {};
    var cfb = CFB.utils.cfb_new({root:"R"});
    var wbpath = "/Workbook";
    switch(o.bookType || "xls") {
      case "xls": o.bookType = "biff8";
      /* falls through */
      case "xla": if(!o.bookType) o.bookType = "xla";
      /* falls through */
      case "biff8": wbpath = "/Workbook"; o.biff = 8; break;
      case "biff5": wbpath = "/Book"; o.biff = 5; break;
      default: throw new Error("invalid type " + o.bookType + " for XLS CFB");
    }
    CFB.utils.cfb_add(cfb, wbpath, write_biff_buf(wb, o));
    if(o.biff == 8 && (wb.Props || wb.Custprops)) write_xls_props(wb, cfb);
    // TODO: SI, DSI, CO
    if(o.biff == 8 && wb.vbaraw) fill_vba_xls(cfb, CFB.read(wb.vbaraw, {type: typeof wb.vbaraw == "string" ? "binary" : "buffer"}));
    return cfb;
  }
  /* [MS-XLSB] 2.3 Record Enumeration */
  var XLSBRecordEnum = {
    0x0000: { n:"BrtRowHdr", f:parse_BrtRowHdr },
    0x0001: { n:"BrtCellBlank", f:parse_BrtCellBlank },
    0x0002: { n:"BrtCellRk", f:parse_BrtCellRk },
    0x0003: { n:"BrtCellError", f:parse_BrtCellError },
    0x0004: { n:"BrtCellBool", f:parse_BrtCellBool },
    0x0005: { n:"BrtCellReal", f:parse_BrtCellReal },
    0x0006: { n:"BrtCellSt", f:parse_BrtCellSt },
    0x0007: { n:"BrtCellIsst", f:parse_BrtCellIsst },
    0x0008: { n:"BrtFmlaString", f:parse_BrtFmlaString },
    0x0009: { n:"BrtFmlaNum", f:parse_BrtFmlaNum },
    0x000A: { n:"BrtFmlaBool", f:parse_BrtFmlaBool },
    0x000B: { n:"BrtFmlaError", f:parse_BrtFmlaError },
    0x0010: { n:"BrtFRTArchID$", f:parse_BrtFRTArchID$ },
    0x0013: { n:"BrtSSTItem", f:parse_RichStr },
    0x0014: { n:"BrtPCDIMissing" },
    0x0015: { n:"BrtPCDINumber" },
    0x0016: { n:"BrtPCDIBoolean" },
    0x0017: { n:"BrtPCDIError" },
    0x0018: { n:"BrtPCDIString" },
    0x0019: { n:"BrtPCDIDatetime" },
    0x001A: { n:"BrtPCDIIndex" },
    0x001B: { n:"BrtPCDIAMissing" },
    0x001C: { n:"BrtPCDIANumber" },
    0x001D: { n:"BrtPCDIABoolean" },
    0x001E: { n:"BrtPCDIAError" },
    0x001F: { n:"BrtPCDIAString" },
    0x0020: { n:"BrtPCDIADatetime" },
    0x0021: { n:"BrtPCRRecord" },
    0x0022: { n:"BrtPCRRecordDt" },
    0x0023: { n:"BrtFRTBegin" },
    0x0024: { n:"BrtFRTEnd" },
    0x0025: { n:"BrtACBegin" },
    0x0026: { n:"BrtACEnd" },
    0x0027: { n:"BrtName", f:parse_BrtName },
    0x0028: { n:"BrtIndexRowBlock" },
    0x002A: { n:"BrtIndexBlock" },
    0x002B: { n:"BrtFont", f:parse_BrtFont },
    0x002C: { n:"BrtFmt", f:parse_BrtFmt },
    0x002D: { n:"BrtFill", f:parse_BrtFill },
    0x002E: { n:"BrtBorder", f:parse_BrtBorder },
    0x002F: { n:"BrtXF", f:parse_BrtXF },
    0x0030: { n:"BrtStyle" },
    0x0031: { n:"BrtCellMeta" },
    0x0032: { n:"BrtValueMeta" },
    0x0033: { n:"BrtMdb" },
    0x0034: { n:"BrtBeginFmd" },
    0x0035: { n:"BrtEndFmd" },
    0x0036: { n:"BrtBeginMdx" },
    0x0037: { n:"BrtEndMdx" },
    0x0038: { n:"BrtBeginMdxTuple" },
    0x0039: { n:"BrtEndMdxTuple" },
    0x003A: { n:"BrtMdxMbrIstr" },
    0x003B: { n:"BrtStr" },
    0x003C: { n:"BrtColInfo", f:parse_ColInfo },
    0x003E: { n:"BrtCellRString" },
    0x003F: { n:"BrtCalcChainItem$", f:parse_BrtCalcChainItem$ },
    0x0040: { n:"BrtDVal" },
    0x0041: { n:"BrtSxvcellNum" },
    0x0042: { n:"BrtSxvcellStr" },
    0x0043: { n:"BrtSxvcellBool" },
    0x0044: { n:"BrtSxvcellErr" },
    0x0045: { n:"BrtSxvcellDate" },
    0x0046: { n:"BrtSxvcellNil" },
    0x0080: { n:"BrtFileVersion" },
    0x0081: { n:"BrtBeginSheet" },
    0x0082: { n:"BrtEndSheet" },
    0x0083: { n:"BrtBeginBook", f:parsenoop, p:0 },
    0x0084: { n:"BrtEndBook" },
    0x0085: { n:"BrtBeginWsViews" },
    0x0086: { n:"BrtEndWsViews" },
    0x0087: { n:"BrtBeginBookViews" },
    0x0088: { n:"BrtEndBookViews" },
    0x0089: { n:"BrtBeginWsView", f:parse_BrtBeginWsView },
    0x008A: { n:"BrtEndWsView" },
    0x008B: { n:"BrtBeginCsViews" },
    0x008C: { n:"BrtEndCsViews" },
    0x008D: { n:"BrtBeginCsView" },
    0x008E: { n:"BrtEndCsView" },
    0x008F: { n:"BrtBeginBundleShs" },
    0x0090: { n:"BrtEndBundleShs" },
    0x0091: { n:"BrtBeginSheetData" },
    0x0092: { n:"BrtEndSheetData" },
    0x0093: { n:"BrtWsProp", f:parse_BrtWsProp },
    0x0094: { n:"BrtWsDim", f:parse_BrtWsDim, p:16 },
    0x0097: { n:"BrtPane" },
    0x0098: { n:"BrtSel" },
    0x0099: { n:"BrtWbProp", f:parse_BrtWbProp },
    0x009A: { n:"BrtWbFactoid" },
    0x009B: { n:"BrtFileRecover" },
    0x009C: { n:"BrtBundleSh", f:parse_BrtBundleSh },
    0x009D: { n:"BrtCalcProp" },
    0x009E: { n:"BrtBookView" },
    0x009F: { n:"BrtBeginSst", f:parse_BrtBeginSst },
    0x00A0: { n:"BrtEndSst" },
    0x00A1: { n:"BrtBeginAFilter", f:parse_UncheckedRfX },
    0x00A2: { n:"BrtEndAFilter" },
    0x00A3: { n:"BrtBeginFilterColumn" },
    0x00A4: { n:"BrtEndFilterColumn" },
    0x00A5: { n:"BrtBeginFilters" },
    0x00A6: { n:"BrtEndFilters" },
    0x00A7: { n:"BrtFilter" },
    0x00A8: { n:"BrtColorFilter" },
    0x00A9: { n:"BrtIconFilter" },
    0x00AA: { n:"BrtTop10Filter" },
    0x00AB: { n:"BrtDynamicFilter" },
    0x00AC: { n:"BrtBeginCustomFilters" },
    0x00AD: { n:"BrtEndCustomFilters" },
    0x00AE: { n:"BrtCustomFilter" },
    0x00AF: { n:"BrtAFilterDateGroupItem" },
    0x00B0: { n:"BrtMergeCell", f:parse_BrtMergeCell },
    0x00B1: { n:"BrtBeginMergeCells" },
    0x00B2: { n:"BrtEndMergeCells" },
    0x00B3: { n:"BrtBeginPivotCacheDef" },
    0x00B4: { n:"BrtEndPivotCacheDef" },
    0x00B5: { n:"BrtBeginPCDFields" },
    0x00B6: { n:"BrtEndPCDFields" },
    0x00B7: { n:"BrtBeginPCDField" },
    0x00B8: { n:"BrtEndPCDField" },
    0x00B9: { n:"BrtBeginPCDSource" },
    0x00BA: { n:"BrtEndPCDSource" },
    0x00BB: { n:"BrtBeginPCDSRange" },
    0x00BC: { n:"BrtEndPCDSRange" },
    0x00BD: { n:"BrtBeginPCDFAtbl" },
    0x00BE: { n:"BrtEndPCDFAtbl" },
    0x00BF: { n:"BrtBeginPCDIRun" },
    0x00C0: { n:"BrtEndPCDIRun" },
    0x00C1: { n:"BrtBeginPivotCacheRecords" },
    0x00C2: { n:"BrtEndPivotCacheRecords" },
    0x00C3: { n:"BrtBeginPCDHierarchies" },
    0x00C4: { n:"BrtEndPCDHierarchies" },
    0x00C5: { n:"BrtBeginPCDHierarchy" },
    0x00C6: { n:"BrtEndPCDHierarchy" },
    0x00C7: { n:"BrtBeginPCDHFieldsUsage" },
    0x00C8: { n:"BrtEndPCDHFieldsUsage" },
    0x00C9: { n:"BrtBeginExtConnection" },
    0x00CA: { n:"BrtEndExtConnection" },
    0x00CB: { n:"BrtBeginECDbProps" },
    0x00CC: { n:"BrtEndECDbProps" },
    0x00CD: { n:"BrtBeginECOlapProps" },
    0x00CE: { n:"BrtEndECOlapProps" },
    0x00CF: { n:"BrtBeginPCDSConsol" },
    0x00D0: { n:"BrtEndPCDSConsol" },
    0x00D1: { n:"BrtBeginPCDSCPages" },
    0x00D2: { n:"BrtEndPCDSCPages" },
    0x00D3: { n:"BrtBeginPCDSCPage" },
    0x00D4: { n:"BrtEndPCDSCPage" },
    0x00D5: { n:"BrtBeginPCDSCPItem" },
    0x00D6: { n:"BrtEndPCDSCPItem" },
    0x00D7: { n:"BrtBeginPCDSCSets" },
    0x00D8: { n:"BrtEndPCDSCSets" },
    0x00D9: { n:"BrtBeginPCDSCSet" },
    0x00DA: { n:"BrtEndPCDSCSet" },
    0x00DB: { n:"BrtBeginPCDFGroup" },
    0x00DC: { n:"BrtEndPCDFGroup" },
    0x00DD: { n:"BrtBeginPCDFGItems" },
    0x00DE: { n:"BrtEndPCDFGItems" },
    0x00DF: { n:"BrtBeginPCDFGRange" },
    0x00E0: { n:"BrtEndPCDFGRange" },
    0x00E1: { n:"BrtBeginPCDFGDiscrete" },
    0x00E2: { n:"BrtEndPCDFGDiscrete" },
    0x00E3: { n:"BrtBeginPCDSDTupleCache" },
    0x00E4: { n:"BrtEndPCDSDTupleCache" },
    0x00E5: { n:"BrtBeginPCDSDTCEntries" },
    0x00E6: { n:"BrtEndPCDSDTCEntries" },
    0x00E7: { n:"BrtBeginPCDSDTCEMembers" },
    0x00E8: { n:"BrtEndPCDSDTCEMembers" },
    0x00E9: { n:"BrtBeginPCDSDTCEMember" },
    0x00EA: { n:"BrtEndPCDSDTCEMember" },
    0x00EB: { n:"BrtBeginPCDSDTCQueries" },
    0x00EC: { n:"BrtEndPCDSDTCQueries" },
    0x00ED: { n:"BrtBeginPCDSDTCQuery" },
    0x00EE: { n:"BrtEndPCDSDTCQuery" },
    0x00EF: { n:"BrtBeginPCDSDTCSets" },
    0x00F0: { n:"BrtEndPCDSDTCSets" },
    0x00F1: { n:"BrtBeginPCDSDTCSet" },
    0x00F2: { n:"BrtEndPCDSDTCSet" },
    0x00F3: { n:"BrtBeginPCDCalcItems" },
    0x00F4: { n:"BrtEndPCDCalcItems" },
    0x00F5: { n:"BrtBeginPCDCalcItem" },
    0x00F6: { n:"BrtEndPCDCalcItem" },
    0x00F7: { n:"BrtBeginPRule" },
    0x00F8: { n:"BrtEndPRule" },
    0x00F9: { n:"BrtBeginPRFilters" },
    0x00FA: { n:"BrtEndPRFilters" },
    0x00FB: { n:"BrtBeginPRFilter" },
    0x00FC: { n:"BrtEndPRFilter" },
    0x00FD: { n:"BrtBeginPNames" },
    0x00FE: { n:"BrtEndPNames" },
    0x00FF: { n:"BrtBeginPName" },
    0x0100: { n:"BrtEndPName" },
    0x0101: { n:"BrtBeginPNPairs" },
    0x0102: { n:"BrtEndPNPairs" },
    0x0103: { n:"BrtBeginPNPair" },
    0x0104: { n:"BrtEndPNPair" },
    0x0105: { n:"BrtBeginECWebProps" },
    0x0106: { n:"BrtEndECWebProps" },
    0x0107: { n:"BrtBeginEcWpTables" },
    0x0108: { n:"BrtEndECWPTables" },
    0x0109: { n:"BrtBeginECParams" },
    0x010A: { n:"BrtEndECParams" },
    0x010B: { n:"BrtBeginECParam" },
    0x010C: { n:"BrtEndECParam" },
    0x010D: { n:"BrtBeginPCDKPIs" },
    0x010E: { n:"BrtEndPCDKPIs" },
    0x010F: { n:"BrtBeginPCDKPI" },
    0x0110: { n:"BrtEndPCDKPI" },
    0x0111: { n:"BrtBeginDims" },
    0x0112: { n:"BrtEndDims" },
    0x0113: { n:"BrtBeginDim" },
    0x0114: { n:"BrtEndDim" },
    0x0115: { n:"BrtIndexPartEnd" },
    0x0116: { n:"BrtBeginStyleSheet" },
    0x0117: { n:"BrtEndStyleSheet" },
    0x0118: { n:"BrtBeginSXView" },
    0x0119: { n:"BrtEndSXVI" },
    0x011A: { n:"BrtBeginSXVI" },
    0x011B: { n:"BrtBeginSXVIs" },
    0x011C: { n:"BrtEndSXVIs" },
    0x011D: { n:"BrtBeginSXVD" },
    0x011E: { n:"BrtEndSXVD" },
    0x011F: { n:"BrtBeginSXVDs" },
    0x0120: { n:"BrtEndSXVDs" },
    0x0121: { n:"BrtBeginSXPI" },
    0x0122: { n:"BrtEndSXPI" },
    0x0123: { n:"BrtBeginSXPIs" },
    0x0124: { n:"BrtEndSXPIs" },
    0x0125: { n:"BrtBeginSXDI" },
    0x0126: { n:"BrtEndSXDI" },
    0x0127: { n:"BrtBeginSXDIs" },
    0x0128: { n:"BrtEndSXDIs" },
    0x0129: { n:"BrtBeginSXLI" },
    0x012A: { n:"BrtEndSXLI" },
    0x012B: { n:"BrtBeginSXLIRws" },
    0x012C: { n:"BrtEndSXLIRws" },
    0x012D: { n:"BrtBeginSXLICols" },
    0x012E: { n:"BrtEndSXLICols" },
    0x012F: { n:"BrtBeginSXFormat" },
    0x0130: { n:"BrtEndSXFormat" },
    0x0131: { n:"BrtBeginSXFormats" },
    0x0132: { n:"BrtEndSxFormats" },
    0x0133: { n:"BrtBeginSxSelect" },
    0x0134: { n:"BrtEndSxSelect" },
    0x0135: { n:"BrtBeginISXVDRws" },
    0x0136: { n:"BrtEndISXVDRws" },
    0x0137: { n:"BrtBeginISXVDCols" },
    0x0138: { n:"BrtEndISXVDCols" },
    0x0139: { n:"BrtEndSXLocation" },
    0x013A: { n:"BrtBeginSXLocation" },
    0x013B: { n:"BrtEndSXView" },
    0x013C: { n:"BrtBeginSXTHs" },
    0x013D: { n:"BrtEndSXTHs" },
    0x013E: { n:"BrtBeginSXTH" },
    0x013F: { n:"BrtEndSXTH" },
    0x0140: { n:"BrtBeginISXTHRws" },
    0x0141: { n:"BrtEndISXTHRws" },
    0x0142: { n:"BrtBeginISXTHCols" },
    0x0143: { n:"BrtEndISXTHCols" },
    0x0144: { n:"BrtBeginSXTDMPS" },
    0x0145: { n:"BrtEndSXTDMPs" },
    0x0146: { n:"BrtBeginSXTDMP" },
    0x0147: { n:"BrtEndSXTDMP" },
    0x0148: { n:"BrtBeginSXTHItems" },
    0x0149: { n:"BrtEndSXTHItems" },
    0x014A: { n:"BrtBeginSXTHItem" },
    0x014B: { n:"BrtEndSXTHItem" },
    0x014C: { n:"BrtBeginMetadata" },
    0x014D: { n:"BrtEndMetadata" },
    0x014E: { n:"BrtBeginEsmdtinfo" },
    0x014F: { n:"BrtMdtinfo" },
    0x0150: { n:"BrtEndEsmdtinfo" },
    0x0151: { n:"BrtBeginEsmdb" },
    0x0152: { n:"BrtEndEsmdb" },
    0x0153: { n:"BrtBeginEsfmd" },
    0x0154: { n:"BrtEndEsfmd" },
    0x0155: { n:"BrtBeginSingleCells" },
    0x0156: { n:"BrtEndSingleCells" },
    0x0157: { n:"BrtBeginList" },
    0x0158: { n:"BrtEndList" },
    0x0159: { n:"BrtBeginListCols" },
    0x015A: { n:"BrtEndListCols" },
    0x015B: { n:"BrtBeginListCol" },
    0x015C: { n:"BrtEndListCol" },
    0x015D: { n:"BrtBeginListXmlCPr" },
    0x015E: { n:"BrtEndListXmlCPr" },
    0x015F: { n:"BrtListCCFmla" },
    0x0160: { n:"BrtListTrFmla" },
    0x0161: { n:"BrtBeginExternals" },
    0x0162: { n:"BrtEndExternals" },
    0x0163: { n:"BrtSupBookSrc", f:parse_RelID},
    0x0165: { n:"BrtSupSelf" },
    0x0166: { n:"BrtSupSame" },
    0x0167: { n:"BrtSupTabs" },
    0x0168: { n:"BrtBeginSupBook" },
    0x0169: { n:"BrtPlaceholderName" },
    0x016A: { n:"BrtExternSheet", f:parse_ExternSheet },
    0x016B: { n:"BrtExternTableStart" },
    0x016C: { n:"BrtExternTableEnd" },
    0x016E: { n:"BrtExternRowHdr" },
    0x016F: { n:"BrtExternCellBlank" },
    0x0170: { n:"BrtExternCellReal" },
    0x0171: { n:"BrtExternCellBool" },
    0x0172: { n:"BrtExternCellError" },
    0x0173: { n:"BrtExternCellString" },
    0x0174: { n:"BrtBeginEsmdx" },
    0x0175: { n:"BrtEndEsmdx" },
    0x0176: { n:"BrtBeginMdxSet" },
    0x0177: { n:"BrtEndMdxSet" },
    0x0178: { n:"BrtBeginMdxMbrProp" },
    0x0179: { n:"BrtEndMdxMbrProp" },
    0x017A: { n:"BrtBeginMdxKPI" },
    0x017B: { n:"BrtEndMdxKPI" },
    0x017C: { n:"BrtBeginEsstr" },
    0x017D: { n:"BrtEndEsstr" },
    0x017E: { n:"BrtBeginPRFItem" },
    0x017F: { n:"BrtEndPRFItem" },
    0x0180: { n:"BrtBeginPivotCacheIDs" },
    0x0181: { n:"BrtEndPivotCacheIDs" },
    0x0182: { n:"BrtBeginPivotCacheID" },
    0x0183: { n:"BrtEndPivotCacheID" },
    0x0184: { n:"BrtBeginISXVIs" },
    0x0185: { n:"BrtEndISXVIs" },
    0x0186: { n:"BrtBeginColInfos" },
    0x0187: { n:"BrtEndColInfos" },
    0x0188: { n:"BrtBeginRwBrk" },
    0x0189: { n:"BrtEndRwBrk" },
    0x018A: { n:"BrtBeginColBrk" },
    0x018B: { n:"BrtEndColBrk" },
    0x018C: { n:"BrtBrk" },
    0x018D: { n:"BrtUserBookView" },
    0x018E: { n:"BrtInfo" },
    0x018F: { n:"BrtCUsr" },
    0x0190: { n:"BrtUsr" },
    0x0191: { n:"BrtBeginUsers" },
    0x0193: { n:"BrtEOF" },
    0x0194: { n:"BrtUCR" },
    0x0195: { n:"BrtRRInsDel" },
    0x0196: { n:"BrtRREndInsDel" },
    0x0197: { n:"BrtRRMove" },
    0x0198: { n:"BrtRREndMove" },
    0x0199: { n:"BrtRRChgCell" },
    0x019A: { n:"BrtRREndChgCell" },
    0x019B: { n:"BrtRRHeader" },
    0x019C: { n:"BrtRRUserView" },
    0x019D: { n:"BrtRRRenSheet" },
    0x019E: { n:"BrtRRInsertSh" },
    0x019F: { n:"BrtRRDefName" },
    0x01A0: { n:"BrtRRNote" },
    0x01A1: { n:"BrtRRConflict" },
    0x01A2: { n:"BrtRRTQSIF" },
    0x01A3: { n:"BrtRRFormat" },
    0x01A4: { n:"BrtRREndFormat" },
    0x01A5: { n:"BrtRRAutoFmt" },
    0x01A6: { n:"BrtBeginUserShViews" },
    0x01A7: { n:"BrtBeginUserShView" },
    0x01A8: { n:"BrtEndUserShView" },
    0x01A9: { n:"BrtEndUserShViews" },
    0x01AA: { n:"BrtArrFmla", f:parse_BrtArrFmla },
    0x01AB: { n:"BrtShrFmla", f:parse_BrtShrFmla },
    0x01AC: { n:"BrtTable" },
    0x01AD: { n:"BrtBeginExtConnections" },
    0x01AE: { n:"BrtEndExtConnections" },
    0x01AF: { n:"BrtBeginPCDCalcMems" },
    0x01B0: { n:"BrtEndPCDCalcMems" },
    0x01B1: { n:"BrtBeginPCDCalcMem" },
    0x01B2: { n:"BrtEndPCDCalcMem" },
    0x01B3: { n:"BrtBeginPCDHGLevels" },
    0x01B4: { n:"BrtEndPCDHGLevels" },
    0x01B5: { n:"BrtBeginPCDHGLevel" },
    0x01B6: { n:"BrtEndPCDHGLevel" },
    0x01B7: { n:"BrtBeginPCDHGLGroups" },
    0x01B8: { n:"BrtEndPCDHGLGroups" },
    0x01B9: { n:"BrtBeginPCDHGLGroup" },
    0x01BA: { n:"BrtEndPCDHGLGroup" },
    0x01BB: { n:"BrtBeginPCDHGLGMembers" },
    0x01BC: { n:"BrtEndPCDHGLGMembers" },
    0x01BD: { n:"BrtBeginPCDHGLGMember" },
    0x01BE: { n:"BrtEndPCDHGLGMember" },
    0x01BF: { n:"BrtBeginQSI" },
    0x01C0: { n:"BrtEndQSI" },
    0x01C1: { n:"BrtBeginQSIR" },
    0x01C2: { n:"BrtEndQSIR" },
    0x01C3: { n:"BrtBeginDeletedNames" },
    0x01C4: { n:"BrtEndDeletedNames" },
    0x01C5: { n:"BrtBeginDeletedName" },
    0x01C6: { n:"BrtEndDeletedName" },
    0x01C7: { n:"BrtBeginQSIFs" },
    0x01C8: { n:"BrtEndQSIFs" },
    0x01C9: { n:"BrtBeginQSIF" },
    0x01CA: { n:"BrtEndQSIF" },
    0x01CB: { n:"BrtBeginAutoSortScope" },
    0x01CC: { n:"BrtEndAutoSortScope" },
    0x01CD: { n:"BrtBeginConditionalFormatting" },
    0x01CE: { n:"BrtEndConditionalFormatting" },
    0x01CF: { n:"BrtBeginCFRule" },
    0x01D0: { n:"BrtEndCFRule" },
    0x01D1: { n:"BrtBeginIconSet" },
    0x01D2: { n:"BrtEndIconSet" },
    0x01D3: { n:"BrtBeginDatabar" },
    0x01D4: { n:"BrtEndDatabar" },
    0x01D5: { n:"BrtBeginColorScale" },
    0x01D6: { n:"BrtEndColorScale" },
    0x01D7: { n:"BrtCFVO" },
    0x01D8: { n:"BrtExternValueMeta" },
    0x01D9: { n:"BrtBeginColorPalette" },
    0x01DA: { n:"BrtEndColorPalette" },
    0x01DB: { n:"BrtIndexedColor" },
    0x01DC: { n:"BrtMargins", f:parse_BrtMargins },
    0x01DD: { n:"BrtPrintOptions" },
    0x01DE: { n:"BrtPageSetup" },
    0x01DF: { n:"BrtBeginHeaderFooter" },
    0x01E0: { n:"BrtEndHeaderFooter" },
    0x01E1: { n:"BrtBeginSXCrtFormat" },
    0x01E2: { n:"BrtEndSXCrtFormat" },
    0x01E3: { n:"BrtBeginSXCrtFormats" },
    0x01E4: { n:"BrtEndSXCrtFormats" },
    0x01E5: { n:"BrtWsFmtInfo", f:parse_BrtWsFmtInfo },
    0x01E6: { n:"BrtBeginMgs" },
    0x01E7: { n:"BrtEndMGs" },
    0x01E8: { n:"BrtBeginMGMaps" },
    0x01E9: { n:"BrtEndMGMaps" },
    0x01EA: { n:"BrtBeginMG" },
    0x01EB: { n:"BrtEndMG" },
    0x01EC: { n:"BrtBeginMap" },
    0x01ED: { n:"BrtEndMap" },
    0x01EE: { n:"BrtHLink", f:parse_BrtHLink },
    0x01EF: { n:"BrtBeginDCon" },
    0x01F0: { n:"BrtEndDCon" },
    0x01F1: { n:"BrtBeginDRefs" },
    0x01F2: { n:"BrtEndDRefs" },
    0x01F3: { n:"BrtDRef" },
    0x01F4: { n:"BrtBeginScenMan" },
    0x01F5: { n:"BrtEndScenMan" },
    0x01F6: { n:"BrtBeginSct" },
    0x01F7: { n:"BrtEndSct" },
    0x01F8: { n:"BrtSlc" },
    0x01F9: { n:"BrtBeginDXFs" },
    0x01FA: { n:"BrtEndDXFs" },
    0x01FB: { n:"BrtDXF" },
    0x01FC: { n:"BrtBeginTableStyles" },
    0x01FD: { n:"BrtEndTableStyles" },
    0x01FE: { n:"BrtBeginTableStyle" },
    0x01FF: { n:"BrtEndTableStyle" },
    0x0200: { n:"BrtTableStyleElement" },
    0x0201: { n:"BrtTableStyleClient" },
    0x0202: { n:"BrtBeginVolDeps" },
    0x0203: { n:"BrtEndVolDeps" },
    0x0204: { n:"BrtBeginVolType" },
    0x0205: { n:"BrtEndVolType" },
    0x0206: { n:"BrtBeginVolMain" },
    0x0207: { n:"BrtEndVolMain" },
    0x0208: { n:"BrtBeginVolTopic" },
    0x0209: { n:"BrtEndVolTopic" },
    0x020A: { n:"BrtVolSubtopic" },
    0x020B: { n:"BrtVolRef" },
    0x020C: { n:"BrtVolNum" },
    0x020D: { n:"BrtVolErr" },
    0x020E: { n:"BrtVolStr" },
    0x020F: { n:"BrtVolBool" },
    0x0210: { n:"BrtBeginCalcChain$" },
    0x0211: { n:"BrtEndCalcChain$" },
    0x0212: { n:"BrtBeginSortState" },
    0x0213: { n:"BrtEndSortState" },
    0x0214: { n:"BrtBeginSortCond" },
    0x0215: { n:"BrtEndSortCond" },
    0x0216: { n:"BrtBookProtection" },
    0x0217: { n:"BrtSheetProtection" },
    0x0218: { n:"BrtRangeProtection" },
    0x0219: { n:"BrtPhoneticInfo" },
    0x021A: { n:"BrtBeginECTxtWiz" },
    0x021B: { n:"BrtEndECTxtWiz" },
    0x021C: { n:"BrtBeginECTWFldInfoLst" },
    0x021D: { n:"BrtEndECTWFldInfoLst" },
    0x021E: { n:"BrtBeginECTwFldInfo" },
    0x0224: { n:"BrtFileSharing" },
    0x0225: { n:"BrtOleSize" },
    0x0226: { n:"BrtDrawing", f:parse_RelID },
    0x0227: { n:"BrtLegacyDrawing" },
    0x0228: { n:"BrtLegacyDrawingHF" },
    0x0229: { n:"BrtWebOpt" },
    0x022A: { n:"BrtBeginWebPubItems" },
    0x022B: { n:"BrtEndWebPubItems" },
    0x022C: { n:"BrtBeginWebPubItem" },
    0x022D: { n:"BrtEndWebPubItem" },
    0x022E: { n:"BrtBeginSXCondFmt" },
    0x022F: { n:"BrtEndSXCondFmt" },
    0x0230: { n:"BrtBeginSXCondFmts" },
    0x0231: { n:"BrtEndSXCondFmts" },
    0x0232: { n:"BrtBkHim" },
    0x0234: { n:"BrtColor" },
    0x0235: { n:"BrtBeginIndexedColors" },
    0x0236: { n:"BrtEndIndexedColors" },
    0x0239: { n:"BrtBeginMRUColors" },
    0x023A: { n:"BrtEndMRUColors" },
    0x023C: { n:"BrtMRUColor" },
    0x023D: { n:"BrtBeginDVals" },
    0x023E: { n:"BrtEndDVals" },
    0x0241: { n:"BrtSupNameStart" },
    0x0242: { n:"BrtSupNameValueStart" },
    0x0243: { n:"BrtSupNameValueEnd" },
    0x0244: { n:"BrtSupNameNum" },
    0x0245: { n:"BrtSupNameErr" },
    0x0246: { n:"BrtSupNameSt" },
    0x0247: { n:"BrtSupNameNil" },
    0x0248: { n:"BrtSupNameBool" },
    0x0249: { n:"BrtSupNameFmla" },
    0x024A: { n:"BrtSupNameBits" },
    0x024B: { n:"BrtSupNameEnd" },
    0x024C: { n:"BrtEndSupBook" },
    0x024D: { n:"BrtCellSmartTagProperty" },
    0x024E: { n:"BrtBeginCellSmartTag" },
    0x024F: { n:"BrtEndCellSmartTag" },
    0x0250: { n:"BrtBeginCellSmartTags" },
    0x0251: { n:"BrtEndCellSmartTags" },
    0x0252: { n:"BrtBeginSmartTags" },
    0x0253: { n:"BrtEndSmartTags" },
    0x0254: { n:"BrtSmartTagType" },
    0x0255: { n:"BrtBeginSmartTagTypes" },
    0x0256: { n:"BrtEndSmartTagTypes" },
    0x0257: { n:"BrtBeginSXFilters" },
    0x0258: { n:"BrtEndSXFilters" },
    0x0259: { n:"BrtBeginSXFILTER" },
    0x025A: { n:"BrtEndSXFilter" },
    0x025B: { n:"BrtBeginFills" },
    0x025C: { n:"BrtEndFills" },
    0x025D: { n:"BrtBeginCellWatches" },
    0x025E: { n:"BrtEndCellWatches" },
    0x025F: { n:"BrtCellWatch" },
    0x0260: { n:"BrtBeginCRErrs" },
    0x0261: { n:"BrtEndCRErrs" },
    0x0262: { n:"BrtCrashRecErr" },
    0x0263: { n:"BrtBeginFonts" },
    0x0264: { n:"BrtEndFonts" },
    0x0265: { n:"BrtBeginBorders" },
    0x0266: { n:"BrtEndBorders" },
    0x0267: { n:"BrtBeginFmts" },
    0x0268: { n:"BrtEndFmts" },
    0x0269: { n:"BrtBeginCellXFs" },
    0x026A: { n:"BrtEndCellXFs" },
    0x026B: { n:"BrtBeginStyles" },
    0x026C: { n:"BrtEndStyles" },
    0x0271: { n:"BrtBigName" },
    0x0272: { n:"BrtBeginCellStyleXFs" },
    0x0273: { n:"BrtEndCellStyleXFs" },
    0x0274: { n:"BrtBeginComments" },
    0x0275: { n:"BrtEndComments" },
    0x0276: { n:"BrtBeginCommentAuthors" },
    0x0277: { n:"BrtEndCommentAuthors" },
    0x0278: { n:"BrtCommentAuthor", f:parse_BrtCommentAuthor },
    0x0279: { n:"BrtBeginCommentList" },
    0x027A: { n:"BrtEndCommentList" },
    0x027B: { n:"BrtBeginComment", f:parse_BrtBeginComment},
    0x027C: { n:"BrtEndComment" },
    0x027D: { n:"BrtCommentText", f:parse_BrtCommentText },
    0x027E: { n:"BrtBeginOleObjects" },
    0x027F: { n:"BrtOleObject" },
    0x0280: { n:"BrtEndOleObjects" },
    0x0281: { n:"BrtBeginSxrules" },
    0x0282: { n:"BrtEndSxRules" },
    0x0283: { n:"BrtBeginActiveXControls" },
    0x0284: { n:"BrtActiveX" },
    0x0285: { n:"BrtEndActiveXControls" },
    0x0286: { n:"BrtBeginPCDSDTCEMembersSortBy" },
    0x0288: { n:"BrtBeginCellIgnoreECs" },
    0x0289: { n:"BrtCellIgnoreEC" },
    0x028A: { n:"BrtEndCellIgnoreECs" },
    0x028B: { n:"BrtCsProp", f:parse_BrtCsProp },
    0x028C: { n:"BrtCsPageSetup" },
    0x028D: { n:"BrtBeginUserCsViews" },
    0x028E: { n:"BrtEndUserCsViews" },
    0x028F: { n:"BrtBeginUserCsView" },
    0x0290: { n:"BrtEndUserCsView" },
    0x0291: { n:"BrtBeginPcdSFCIEntries" },
    0x0292: { n:"BrtEndPCDSFCIEntries" },
    0x0293: { n:"BrtPCDSFCIEntry" },
    0x0294: { n:"BrtBeginListParts" },
    0x0295: { n:"BrtListPart" },
    0x0296: { n:"BrtEndListParts" },
    0x0297: { n:"BrtSheetCalcProp" },
    0x0298: { n:"BrtBeginFnGroup" },
    0x0299: { n:"BrtFnGroup" },
    0x029A: { n:"BrtEndFnGroup" },
    0x029B: { n:"BrtSupAddin" },
    0x029C: { n:"BrtSXTDMPOrder" },
    0x029D: { n:"BrtCsProtection" },
    0x029F: { n:"BrtBeginWsSortMap" },
    0x02A0: { n:"BrtEndWsSortMap" },
    0x02A1: { n:"BrtBeginRRSort" },
    0x02A2: { n:"BrtEndRRSort" },
    0x02A3: { n:"BrtRRSortItem" },
    0x02A4: { n:"BrtFileSharingIso" },
    0x02A5: { n:"BrtBookProtectionIso" },
    0x02A6: { n:"BrtSheetProtectionIso" },
    0x02A7: { n:"BrtCsProtectionIso" },
    0x02A8: { n:"BrtRangeProtectionIso" },
    0x0400: { n:"BrtRwDescent" },
    0x0401: { n:"BrtKnownFonts" },
    0x0402: { n:"BrtBeginSXTupleSet" },
    0x0403: { n:"BrtEndSXTupleSet" },
    0x0404: { n:"BrtBeginSXTupleSetHeader" },
    0x0405: { n:"BrtEndSXTupleSetHeader" },
    0x0406: { n:"BrtSXTupleSetHeaderItem" },
    0x0407: { n:"BrtBeginSXTupleSetData" },
    0x0408: { n:"BrtEndSXTupleSetData" },
    0x0409: { n:"BrtBeginSXTupleSetRow" },
    0x040A: { n:"BrtEndSXTupleSetRow" },
    0x040B: { n:"BrtSXTupleSetRowItem" },
    0x040C: { n:"BrtNameExt" },
    0x040D: { n:"BrtPCDH14" },
    0x040E: { n:"BrtBeginPCDCalcMem14" },
    0x040F: { n:"BrtEndPCDCalcMem14" },
    0x0410: { n:"BrtSXTH14" },
    0x0411: { n:"BrtBeginSparklineGroup" },
    0x0412: { n:"BrtEndSparklineGroup" },
    0x0413: { n:"BrtSparkline" },
    0x0414: { n:"BrtSXDI14" },
    0x0415: { n:"BrtWsFmtInfoEx14" },
    0x0416: { n:"BrtBeginConditionalFormatting14" },
    0x0417: { n:"BrtEndConditionalFormatting14" },
    0x0418: { n:"BrtBeginCFRule14" },
    0x0419: { n:"BrtEndCFRule14" },
    0x041A: { n:"BrtCFVO14" },
    0x041B: { n:"BrtBeginDatabar14" },
    0x041C: { n:"BrtBeginIconSet14" },
    0x041D: { n:"BrtDVal14" },
    0x041E: { n:"BrtBeginDVals14" },
    0x041F: { n:"BrtColor14" },
    0x0420: { n:"BrtBeginSparklines" },
    0x0421: { n:"BrtEndSparklines" },
    0x0422: { n:"BrtBeginSparklineGroups" },
    0x0423: { n:"BrtEndSparklineGroups" },
    0x0425: { n:"BrtSXVD14" },
    0x0426: { n:"BrtBeginSXView14" },
    0x0427: { n:"BrtEndSXView14" },
    0x0428: { n:"BrtBeginSXView16" },
    0x0429: { n:"BrtEndSXView16" },
    0x042A: { n:"BrtBeginPCD14" },
    0x042B: { n:"BrtEndPCD14" },
    0x042C: { n:"BrtBeginExtConn14" },
    0x042D: { n:"BrtEndExtConn14" },
    0x042E: { n:"BrtBeginSlicerCacheIDs" },
    0x042F: { n:"BrtEndSlicerCacheIDs" },
    0x0430: { n:"BrtBeginSlicerCacheID" },
    0x0431: { n:"BrtEndSlicerCacheID" },
    0x0433: { n:"BrtBeginSlicerCache" },
    0x0434: { n:"BrtEndSlicerCache" },
    0x0435: { n:"BrtBeginSlicerCacheDef" },
    0x0436: { n:"BrtEndSlicerCacheDef" },
    0x0437: { n:"BrtBeginSlicersEx" },
    0x0438: { n:"BrtEndSlicersEx" },
    0x0439: { n:"BrtBeginSlicerEx" },
    0x043A: { n:"BrtEndSlicerEx" },
    0x043B: { n:"BrtBeginSlicer" },
    0x043C: { n:"BrtEndSlicer" },
    0x043D: { n:"BrtSlicerCachePivotTables" },
    0x043E: { n:"BrtBeginSlicerCacheOlapImpl" },
    0x043F: { n:"BrtEndSlicerCacheOlapImpl" },
    0x0440: { n:"BrtBeginSlicerCacheLevelsData" },
    0x0441: { n:"BrtEndSlicerCacheLevelsData" },
    0x0442: { n:"BrtBeginSlicerCacheLevelData" },
    0x0443: { n:"BrtEndSlicerCacheLevelData" },
    0x0444: { n:"BrtBeginSlicerCacheSiRanges" },
    0x0445: { n:"BrtEndSlicerCacheSiRanges" },
    0x0446: { n:"BrtBeginSlicerCacheSiRange" },
    0x0447: { n:"BrtEndSlicerCacheSiRange" },
    0x0448: { n:"BrtSlicerCacheOlapItem" },
    0x0449: { n:"BrtBeginSlicerCacheSelections" },
    0x044A: { n:"BrtSlicerCacheSelection" },
    0x044B: { n:"BrtEndSlicerCacheSelections" },
    0x044C: { n:"BrtBeginSlicerCacheNative" },
    0x044D: { n:"BrtEndSlicerCacheNative" },
    0x044E: { n:"BrtSlicerCacheNativeItem" },
    0x044F: { n:"BrtRangeProtection14" },
    0x0450: { n:"BrtRangeProtectionIso14" },
    0x0451: { n:"BrtCellIgnoreEC14" },
    0x0457: { n:"BrtList14" },
    0x0458: { n:"BrtCFIcon" },
    0x0459: { n:"BrtBeginSlicerCachesPivotCacheIDs" },
    0x045A: { n:"BrtEndSlicerCachesPivotCacheIDs" },
    0x045B: { n:"BrtBeginSlicers" },
    0x045C: { n:"BrtEndSlicers" },
    0x045D: { n:"BrtWbProp14" },
    0x045E: { n:"BrtBeginSXEdit" },
    0x045F: { n:"BrtEndSXEdit" },
    0x0460: { n:"BrtBeginSXEdits" },
    0x0461: { n:"BrtEndSXEdits" },
    0x0462: { n:"BrtBeginSXChange" },
    0x0463: { n:"BrtEndSXChange" },
    0x0464: { n:"BrtBeginSXChanges" },
    0x0465: { n:"BrtEndSXChanges" },
    0x0466: { n:"BrtSXTupleItems" },
    0x0468: { n:"BrtBeginSlicerStyle" },
    0x0469: { n:"BrtEndSlicerStyle" },
    0x046A: { n:"BrtSlicerStyleElement" },
    0x046B: { n:"BrtBeginStyleSheetExt14" },
    0x046C: { n:"BrtEndStyleSheetExt14" },
    0x046D: { n:"BrtBeginSlicerCachesPivotCacheID" },
    0x046E: { n:"BrtEndSlicerCachesPivotCacheID" },
    0x046F: { n:"BrtBeginConditionalFormattings" },
    0x0470: { n:"BrtEndConditionalFormattings" },
    0x0471: { n:"BrtBeginPCDCalcMemExt" },
    0x0472: { n:"BrtEndPCDCalcMemExt" },
    0x0473: { n:"BrtBeginPCDCalcMemsExt" },
    0x0474: { n:"BrtEndPCDCalcMemsExt" },
    0x0475: { n:"BrtPCDField14" },
    0x0476: { n:"BrtBeginSlicerStyles" },
    0x0477: { n:"BrtEndSlicerStyles" },
    0x0478: { n:"BrtBeginSlicerStyleElements" },
    0x0479: { n:"BrtEndSlicerStyleElements" },
    0x047A: { n:"BrtCFRuleExt" },
    0x047B: { n:"BrtBeginSXCondFmt14" },
    0x047C: { n:"BrtEndSXCondFmt14" },
    0x047D: { n:"BrtBeginSXCondFmts14" },
    0x047E: { n:"BrtEndSXCondFmts14" },
    0x0480: { n:"BrtBeginSortCond14" },
    0x0481: { n:"BrtEndSortCond14" },
    0x0482: { n:"BrtEndDVals14" },
    0x0483: { n:"BrtEndIconSet14" },
    0x0484: { n:"BrtEndDatabar14" },
    0x0485: { n:"BrtBeginColorScale14" },
    0x0486: { n:"BrtEndColorScale14" },
    0x0487: { n:"BrtBeginSxrules14" },
    0x0488: { n:"BrtEndSxrules14" },
    0x0489: { n:"BrtBeginPRule14" },
    0x048A: { n:"BrtEndPRule14" },
    0x048B: { n:"BrtBeginPRFilters14" },
    0x048C: { n:"BrtEndPRFilters14" },
    0x048D: { n:"BrtBeginPRFilter14" },
    0x048E: { n:"BrtEndPRFilter14" },
    0x048F: { n:"BrtBeginPRFItem14" },
    0x0490: { n:"BrtEndPRFItem14" },
    0x0491: { n:"BrtBeginCellIgnoreECs14" },
    0x0492: { n:"BrtEndCellIgnoreECs14" },
    0x0493: { n:"BrtDxf14" },
    0x0494: { n:"BrtBeginDxF14s" },
    0x0495: { n:"BrtEndDxf14s" },
    0x0499: { n:"BrtFilter14" },
    0x049A: { n:"BrtBeginCustomFilters14" },
    0x049C: { n:"BrtCustomFilter14" },
    0x049D: { n:"BrtIconFilter14" },
    0x049E: { n:"BrtPivotCacheConnectionName" },
    0x0800: { n:"BrtBeginDecoupledPivotCacheIDs" },
    0x0801: { n:"BrtEndDecoupledPivotCacheIDs" },
    0x0802: { n:"BrtDecoupledPivotCacheID" },
    0x0803: { n:"BrtBeginPivotTableRefs" },
    0x0804: { n:"BrtEndPivotTableRefs" },
    0x0805: { n:"BrtPivotTableRef" },
    0x0806: { n:"BrtSlicerCacheBookPivotTables" },
    0x0807: { n:"BrtBeginSxvcells" },
    0x0808: { n:"BrtEndSxvcells" },
    0x0809: { n:"BrtBeginSxRow" },
    0x080A: { n:"BrtEndSxRow" },
    0x080C: { n:"BrtPcdCalcMem15" },
    0x0813: { n:"BrtQsi15" },
    0x0814: { n:"BrtBeginWebExtensions" },
    0x0815: { n:"BrtEndWebExtensions" },
    0x0816: { n:"BrtWebExtension" },
    0x0817: { n:"BrtAbsPath15" },
    0x0818: { n:"BrtBeginPivotTableUISettings" },
    0x0819: { n:"BrtEndPivotTableUISettings" },
    0x081B: { n:"BrtTableSlicerCacheIDs" },
    0x081C: { n:"BrtTableSlicerCacheID" },
    0x081D: { n:"BrtBeginTableSlicerCache" },
    0x081E: { n:"BrtEndTableSlicerCache" },
    0x081F: { n:"BrtSxFilter15" },
    0x0820: { n:"BrtBeginTimelineCachePivotCacheIDs" },
    0x0821: { n:"BrtEndTimelineCachePivotCacheIDs" },
    0x0822: { n:"BrtTimelineCachePivotCacheID" },
    0x0823: { n:"BrtBeginTimelineCacheIDs" },
    0x0824: { n:"BrtEndTimelineCacheIDs" },
    0x0825: { n:"BrtBeginTimelineCacheID" },
    0x0826: { n:"BrtEndTimelineCacheID" },
    0x0827: { n:"BrtBeginTimelinesEx" },
    0x0828: { n:"BrtEndTimelinesEx" },
    0x0829: { n:"BrtBeginTimelineEx" },
    0x082A: { n:"BrtEndTimelineEx" },
    0x082B: { n:"BrtWorkBookPr15" },
    0x082C: { n:"BrtPCDH15" },
    0x082D: { n:"BrtBeginTimelineStyle" },
    0x082E: { n:"BrtEndTimelineStyle" },
    0x082F: { n:"BrtTimelineStyleElement" },
    0x0830: { n:"BrtBeginTimelineStylesheetExt15" },
    0x0831: { n:"BrtEndTimelineStylesheetExt15" },
    0x0832: { n:"BrtBeginTimelineStyles" },
    0x0833: { n:"BrtEndTimelineStyles" },
    0x0834: { n:"BrtBeginTimelineStyleElements" },
    0x0835: { n:"BrtEndTimelineStyleElements" },
    0x0836: { n:"BrtDxf15" },
    0x0837: { n:"BrtBeginDxfs15" },
    0x0838: { n:"brtEndDxfs15" },
    0x0839: { n:"BrtSlicerCacheHideItemsWithNoData" },
    0x083A: { n:"BrtBeginItemUniqueNames" },
    0x083B: { n:"BrtEndItemUniqueNames" },
    0x083C: { n:"BrtItemUniqueName" },
    0x083D: { n:"BrtBeginExtConn15" },
    0x083E: { n:"BrtEndExtConn15" },
    0x083F: { n:"BrtBeginOledbPr15" },
    0x0840: { n:"BrtEndOledbPr15" },
    0x0841: { n:"BrtBeginDataFeedPr15" },
    0x0842: { n:"BrtEndDataFeedPr15" },
    0x0843: { n:"BrtTextPr15" },
    0x0844: { n:"BrtRangePr15" },
    0x0845: { n:"BrtDbCommand15" },
    0x0846: { n:"BrtBeginDbTables15" },
    0x0847: { n:"BrtEndDbTables15" },
    0x0848: { n:"BrtDbTable15" },
    0x0849: { n:"BrtBeginDataModel" },
    0x084A: { n:"BrtEndDataModel" },
    0x084B: { n:"BrtBeginModelTables" },
    0x084C: { n:"BrtEndModelTables" },
    0x084D: { n:"BrtModelTable" },
    0x084E: { n:"BrtBeginModelRelationships" },
    0x084F: { n:"BrtEndModelRelationships" },
    0x0850: { n:"BrtModelRelationship" },
    0x0851: { n:"BrtBeginECTxtWiz15" },
    0x0852: { n:"BrtEndECTxtWiz15" },
    0x0853: { n:"BrtBeginECTWFldInfoLst15" },
    0x0854: { n:"BrtEndECTWFldInfoLst15" },
    0x0855: { n:"BrtBeginECTWFldInfo15" },
    0x0856: { n:"BrtFieldListActiveItem" },
    0x0857: { n:"BrtPivotCacheIdVersion" },
    0x0858: { n:"BrtSXDI15" },
    0x0859: { n:"BrtBeginModelTimeGroupings" },
    0x085A: { n:"BrtEndModelTimeGroupings" },
    0x085B: { n:"BrtBeginModelTimeGrouping" },
    0x085C: { n:"BrtEndModelTimeGrouping" },
    0x085D: { n:"BrtModelTimeGroupingCalcCol" },
    0x0C00: { n:"BrtUid" },
    0x0C01: { n:"BrtRevisionPtr" },
    0x13e7: { n:"BrtBeginCalcFeatures" },
    0x13e8: { n:"BrtEndCalcFeatures" },
    0x13e9: { n:"BrtCalcFeature" },
    0xFFFF: { n:"" }
  };

  var XLSBRE = evert_key(XLSBRecordEnum, 'n');

  /* [MS-XLS] 2.3 Record Enumeration */
  var XLSRecordEnum = {
    0x0003: { n:"BIFF2NUM", f:parse_BIFF2NUM },
    0x0004: { n:"BIFF2STR", f:parse_BIFF2STR },
    0x0006: { n:"Formula", f:parse_Formula },
    0x0009: { n:'BOF', f:parse_BOF },
    0x000a: { n:'EOF', f:parsenoop2 },
    0x000c: { n:"CalcCount", f:parseuint16 },
    0x000d: { n:"CalcMode", f:parseuint16 },
    0x000e: { n:"CalcPrecision", f:parsebool },
    0x000f: { n:"CalcRefMode", f:parsebool },
    0x0010: { n:"CalcDelta", f:parse_Xnum },
    0x0011: { n:"CalcIter", f:parsebool },
    0x0012: { n:"Protect", f:parsebool },
    0x0013: { n:"Password", f:parseuint16 },
    0x0014: { n:"Header", f:parse_XLHeaderFooter },
    0x0015: { n:"Footer", f:parse_XLHeaderFooter },
    0x0017: { n:"ExternSheet", f:parse_ExternSheet },
    0x0018: { n:"Lbl", f:parse_Lbl },
    0x0019: { n:"WinProtect", f:parsebool },
    0x001a: { n:"VerticalPageBreaks" },
    0x001b: { n:"HorizontalPageBreaks" },
    0x001c: { n:"Note", f:parse_Note },
    0x001d: { n:"Selection" },
    0x0022: { n:"Date1904", f:parsebool },
    0x0023: { n:"ExternName", f:parse_ExternName },
    0x0026: { n:"LeftMargin", f:parse_Xnum },
    0x0027: { n:"RightMargin", f:parse_Xnum },
    0x0028: { n:"TopMargin", f:parse_Xnum },
    0x0029: { n:"BottomMargin", f:parse_Xnum },
    0x002a: { n:"PrintRowCol", f:parsebool },
    0x002b: { n:"PrintGrid", f:parsebool },
    0x002f: { n:"FilePass", f:parse_FilePass },
    0x0031: { n:"Font", f:parse_Font },
    0x0033: { n:"PrintSize", f:parseuint16 },
    0x003c: { n:"Continue" },
    0x003d: { n:"Window1", f:parse_Window1 },
    0x0040: { n:"Backup", f:parsebool },
    0x0041: { n:"Pane" },
    0x0042: { n:'CodePage', f:parseuint16 },
    0x004d: { n:"Pls" },
    0x0050: { n:"DCon" },
    0x0051: { n:"DConRef" },
    0x0052: { n:"DConName" },
    0x0055: { n:"DefColWidth", f:parseuint16 },
    0x0059: { n:"XCT" },
    0x005a: { n:"CRN" },
    0x005b: { n:"FileSharing" },
    0x005c: { n:'WriteAccess', f:parse_WriteAccess },
    0x005d: { n:"Obj", f:parse_Obj },
    0x005e: { n:"Uncalced" },
    0x005f: { n:"CalcSaveRecalc", f:parsebool },
    0x0060: { n:"Template" },
    0x0061: { n:"Intl" },
    0x0063: { n:"ObjProtect", f:parsebool },
    0x007d: { n:"ColInfo", f:parse_ColInfo },
    0x0080: { n:"Guts", f:parse_Guts },
    0x0081: { n:"WsBool", f:parse_WsBool },
    0x0082: { n:"GridSet", f:parseuint16 },
    0x0083: { n:"HCenter", f:parsebool },
    0x0084: { n:"VCenter", f:parsebool },
    0x0085: { n:'BoundSheet8', f:parse_BoundSheet8 },
    0x0086: { n:"WriteProtect" },
    0x008c: { n:"Country", f:parse_Country },
    0x008d: { n:"HideObj", f:parseuint16 },
    0x0090: { n:"Sort" },
    0x0092: { n:"Palette", f:parse_Palette },
    0x0097: { n:"Sync" },
    0x0098: { n:"LPr" },
    0x0099: { n:"DxGCol" },
    0x009a: { n:"FnGroupName" },
    0x009b: { n:"FilterMode" },
    0x009c: { n:"BuiltInFnGroupCount", f:parseuint16 },
    0x009d: { n:"AutoFilterInfo" },
    0x009e: { n:"AutoFilter" },
    0x00a0: { n:"Scl", f:parse_Scl },
    0x00a1: { n:"Setup", f:parse_Setup },
    0x00ae: { n:"ScenMan" },
    0x00af: { n:"SCENARIO" },
    0x00b0: { n:"SxView" },
    0x00b1: { n:"Sxvd" },
    0x00b2: { n:"SXVI" },
    0x00b4: { n:"SxIvd" },
    0x00b5: { n:"SXLI" },
    0x00b6: { n:"SXPI" },
    0x00b8: { n:"DocRoute" },
    0x00b9: { n:"RecipName" },
    0x00bd: { n:"MulRk", f:parse_MulRk },
    0x00be: { n:"MulBlank", f:parse_MulBlank },
    0x00c1: { n:'Mms', f:parsenoop2 },
    0x00c5: { n:"SXDI" },
    0x00c6: { n:"SXDB" },
    0x00c7: { n:"SXFDB" },
    0x00c8: { n:"SXDBB" },
    0x00c9: { n:"SXNum" },
    0x00ca: { n:"SxBool", f:parsebool },
    0x00cb: { n:"SxErr" },
    0x00cc: { n:"SXInt" },
    0x00cd: { n:"SXString" },
    0x00ce: { n:"SXDtr" },
    0x00cf: { n:"SxNil" },
    0x00d0: { n:"SXTbl" },
    0x00d1: { n:"SXTBRGIITM" },
    0x00d2: { n:"SxTbpg" },
    0x00d3: { n:"ObProj" },
    0x00d5: { n:"SXStreamID" },
    0x00d7: { n:"DBCell" },
    0x00d8: { n:"SXRng" },
    0x00d9: { n:"SxIsxoper" },
    0x00da: { n:"BookBool", f:parseuint16 },
    0x00dc: { n:"DbOrParamQry" },
    0x00dd: { n:"ScenarioProtect", f:parsebool },
    0x00de: { n:"OleObjectSize" },
    0x00e0: { n:"XF", f:parse_XF },
    0x00e1: { n:'InterfaceHdr', f:parse_InterfaceHdr },
    0x00e2: { n:'InterfaceEnd', f:parsenoop2 },
    0x00e3: { n:"SXVS" },
    0x00e5: { n:"MergeCells", f:parse_MergeCells },
    0x00e9: { n:"BkHim" },
    0x00eb: { n:"MsoDrawingGroup" },
    0x00ec: { n:"MsoDrawing" },
    0x00ed: { n:"MsoDrawingSelection" },
    0x00ef: { n:"PhoneticInfo" },
    0x00f0: { n:"SxRule" },
    0x00f1: { n:"SXEx" },
    0x00f2: { n:"SxFilt" },
    0x00f4: { n:"SxDXF" },
    0x00f5: { n:"SxItm" },
    0x00f6: { n:"SxName" },
    0x00f7: { n:"SxSelect" },
    0x00f8: { n:"SXPair" },
    0x00f9: { n:"SxFmla" },
    0x00fb: { n:"SxFormat" },
    0x00fc: { n:"SST", f:parse_SST },
    0x00fd: { n:"LabelSst", f:parse_LabelSst },
    0x00ff: { n:"ExtSST", f:parse_ExtSST },
    0x0100: { n:"SXVDEx" },
    0x0103: { n:"SXFormula" },
    0x0122: { n:"SXDBEx" },
    0x0137: { n:"RRDInsDel" },
    0x0138: { n:"RRDHead" },
    0x013b: { n:"RRDChgCell" },
    0x013d: { n:"RRTabId", f:parseuint16a },
    0x013e: { n:"RRDRenSheet" },
    0x013f: { n:"RRSort" },
    0x0140: { n:"RRDMove" },
    0x014a: { n:"RRFormat" },
    0x014b: { n:"RRAutoFmt" },
    0x014d: { n:"RRInsertSh" },
    0x014e: { n:"RRDMoveBegin" },
    0x014f: { n:"RRDMoveEnd" },
    0x0150: { n:"RRDInsDelBegin" },
    0x0151: { n:"RRDInsDelEnd" },
    0x0152: { n:"RRDConflict" },
    0x0153: { n:"RRDDefName" },
    0x0154: { n:"RRDRstEtxp" },
    0x015f: { n:"LRng" },
    0x0160: { n:"UsesELFs", f:parsebool },
    0x0161: { n:"DSF", f:parsenoop2 },
    0x0191: { n:"CUsr" },
    0x0192: { n:"CbUsr" },
    0x0193: { n:"UsrInfo" },
    0x0194: { n:"UsrExcl" },
    0x0195: { n:"FileLock" },
    0x0196: { n:"RRDInfo" },
    0x0197: { n:"BCUsrs" },
    0x0198: { n:"UsrChk" },
    0x01a9: { n:"UserBView" },
    0x01aa: { n:"UserSViewBegin" },
    0x01ab: { n:"UserSViewEnd" },
    0x01ac: { n:"RRDUserView" },
    0x01ad: { n:"Qsi" },
    0x01ae: { n:"SupBook", f:parse_SupBook },
    0x01af: { n:"Prot4Rev", f:parsebool },
    0x01b0: { n:"CondFmt" },
    0x01b1: { n:"CF" },
    0x01b2: { n:"DVal" },
    0x01b5: { n:"DConBin" },
    0x01b6: { n:"TxO", f:parse_TxO },
    0x01b7: { n:"RefreshAll", f:parsebool },
    0x01b8: { n:"HLink", f:parse_HLink },
    0x01b9: { n:"Lel" },
    0x01ba: { n:"CodeName", f:parse_XLUnicodeString },
    0x01bb: { n:"SXFDBType" },
    0x01bc: { n:"Prot4RevPass", f:parseuint16 },
    0x01bd: { n:"ObNoMacros" },
    0x01be: { n:"Dv" },
    0x01c0: { n:"Excel9File", f:parsenoop2 },
    0x01c1: { n:"RecalcId", f:parse_RecalcId, r:2},
    0x01c2: { n:"EntExU2", f:parsenoop2 },
    0x0200: { n:"Dimensions", f:parse_Dimensions },
    0x0201: { n:"Blank", f:parse_Blank },
    0x0203: { n:"Number", f:parse_Number },
    0x0204: { n:"Label", f:parse_Label },
    0x0205: { n:"BoolErr", f:parse_BoolErr },
    0x0206: { n:"Formula", f:parse_Formula },
    0x0207: { n:"String", f:parse_String },
    0x0208: { n:'Row', f:parse_Row },
    0x020b: { n:"Index" },
    0x0221: { n:"Array", f:parse_Array },
    0x0225: { n:"DefaultRowHeight", f:parse_DefaultRowHeight },
    0x0236: { n:"Table" },
    0x023e: { n:"Window2", f:parse_Window2 },
    0x027e: { n:"RK", f:parse_RK },
    0x0293: { n:"Style" },
    0x0406: { n:"Formula", f:parse_Formula },
    0x0418: { n:"BigName" },
    0x041e: { n:"Format", f:parse_Format },
    0x043c: { n:"ContinueBigName" },
    0x04bc: { n:"ShrFmla", f:parse_ShrFmla },
    0x0800: { n:"HLinkTooltip", f:parse_HLinkTooltip },
    0x0801: { n:"WebPub" },
    0x0802: { n:"QsiSXTag" },
    0x0803: { n:"DBQueryExt" },
    0x0804: { n:"ExtString" },
    0x0805: { n:"TxtQry" },
    0x0806: { n:"Qsir" },
    0x0807: { n:"Qsif" },
    0x0808: { n:"RRDTQSIF" },
    0x0809: { n:'BOF', f:parse_BOF },
    0x080a: { n:"OleDbConn" },
    0x080b: { n:"WOpt" },
    0x080c: { n:"SXViewEx" },
    0x080d: { n:"SXTH" },
    0x080e: { n:"SXPIEx" },
    0x080f: { n:"SXVDTEx" },
    0x0810: { n:"SXViewEx9" },
    0x0812: { n:"ContinueFrt" },
    0x0813: { n:"RealTimeData" },
    0x0850: { n:"ChartFrtInfo" },
    0x0851: { n:"FrtWrapper" },
    0x0852: { n:"StartBlock" },
    0x0853: { n:"EndBlock" },
    0x0854: { n:"StartObject" },
    0x0855: { n:"EndObject" },
    0x0856: { n:"CatLab" },
    0x0857: { n:"YMult" },
    0x0858: { n:"SXViewLink" },
    0x0859: { n:"PivotChartBits" },
    0x085a: { n:"FrtFontList" },
    0x0862: { n:"SheetExt" },
    0x0863: { n:"BookExt", r:12},
    0x0864: { n:"SXAddl" },
    0x0865: { n:"CrErr" },
    0x0866: { n:"HFPicture" },
    0x0867: { n:'FeatHdr', f:parsenoop2 },
    0x0868: { n:"Feat" },
    0x086a: { n:"DataLabExt" },
    0x086b: { n:"DataLabExtContents" },
    0x086c: { n:"CellWatch" },
    0x0871: { n:"FeatHdr11" },
    0x0872: { n:"Feature11" },
    0x0874: { n:"DropDownObjIds" },
    0x0875: { n:"ContinueFrt11" },
    0x0876: { n:"DConn" },
    0x0877: { n:"List12" },
    0x0878: { n:"Feature12" },
    0x0879: { n:"CondFmt12" },
    0x087a: { n:"CF12" },
    0x087b: { n:"CFEx" },
    0x087c: { n:"XFCRC", f:parse_XFCRC, r:12 },
    0x087d: { n:"XFExt", f:parse_XFExt, r:12 },
    0x087e: { n:"AutoFilter12" },
    0x087f: { n:"ContinueFrt12" },
    0x0884: { n:"MDTInfo" },
    0x0885: { n:"MDXStr" },
    0x0886: { n:"MDXTuple" },
    0x0887: { n:"MDXSet" },
    0x0888: { n:"MDXProp" },
    0x0889: { n:"MDXKPI" },
    0x088a: { n:"MDB" },
    0x088b: { n:"PLV" },
    0x088c: { n:"Compat12", f:parsebool, r:12 },
    0x088d: { n:"DXF" },
    0x088e: { n:"TableStyles", r:12 },
    0x088f: { n:"TableStyle" },
    0x0890: { n:"TableStyleElement" },
    0x0892: { n:"StyleExt" },
    0x0893: { n:"NamePublish" },
    0x0894: { n:"NameCmt", f:parse_NameCmt, r:12 },
    0x0895: { n:"SortData" },
    0x0896: { n:"Theme", f:parse_Theme, r:12 },
    0x0897: { n:"GUIDTypeLib" },
    0x0898: { n:"FnGrp12" },
    0x0899: { n:"NameFnGrp12" },
    0x089a: { n:"MTRSettings", f:parse_MTRSettings, r:12 },
    0x089b: { n:"CompressPictures", f:parsenoop2 },
    0x089c: { n:"HeaderFooter" },
    0x089d: { n:"CrtLayout12" },
    0x089e: { n:"CrtMlFrt" },
    0x089f: { n:"CrtMlFrtContinue" },
    0x08a3: { n:"ForceFullCalculation", f:parse_ForceFullCalculation },
    0x08a4: { n:"ShapePropsStream" },
    0x08a5: { n:"TextPropsStream" },
    0x08a6: { n:"RichTextStream" },
    0x08a7: { n:"CrtLayout12A" },
    0x1001: { n:"Units" },
    0x1002: { n:"Chart" },
    0x1003: { n:"Series" },
    0x1006: { n:"DataFormat" },
    0x1007: { n:"LineFormat" },
    0x1009: { n:"MarkerFormat" },
    0x100a: { n:"AreaFormat" },
    0x100b: { n:"PieFormat" },
    0x100c: { n:"AttachedLabel" },
    0x100d: { n:"SeriesText" },
    0x1014: { n:"ChartFormat" },
    0x1015: { n:"Legend" },
    0x1016: { n:"SeriesList" },
    0x1017: { n:"Bar" },
    0x1018: { n:"Line" },
    0x1019: { n:"Pie" },
    0x101a: { n:"Area" },
    0x101b: { n:"Scatter" },
    0x101c: { n:"CrtLine" },
    0x101d: { n:"Axis" },
    0x101e: { n:"Tick" },
    0x101f: { n:"ValueRange" },
    0x1020: { n:"CatSerRange" },
    0x1021: { n:"AxisLine" },
    0x1022: { n:"CrtLink" },
    0x1024: { n:"DefaultText" },
    0x1025: { n:"Text" },
    0x1026: { n:"FontX", f:parseuint16 },
    0x1027: { n:"ObjectLink" },
    0x1032: { n:"Frame" },
    0x1033: { n:"Begin" },
    0x1034: { n:"End" },
    0x1035: { n:"PlotArea" },
    0x103a: { n:"Chart3d" },
    0x103c: { n:"PicF" },
    0x103d: { n:"DropBar" },
    0x103e: { n:"Radar" },
    0x103f: { n:"Surf" },
    0x1040: { n:"RadarArea" },
    0x1041: { n:"AxisParent" },
    0x1043: { n:"LegendException" },
    0x1044: { n:"ShtProps", f:parse_ShtProps },
    0x1045: { n:"SerToCrt" },
    0x1046: { n:"AxesUsed" },
    0x1048: { n:"SBaseRef" },
    0x104a: { n:"SerParent" },
    0x104b: { n:"SerAuxTrend" },
    0x104e: { n:"IFmtRecord" },
    0x104f: { n:"Pos" },
    0x1050: { n:"AlRuns" },
    0x1051: { n:"BRAI" },
    0x105b: { n:"SerAuxErrBar" },
    0x105c: { n:"ClrtClient", f:parse_ClrtClient },
    0x105d: { n:"SerFmt" },
    0x105f: { n:"Chart3DBarShape" },
    0x1060: { n:"Fbi" },
    0x1061: { n:"BopPop" },
    0x1062: { n:"AxcExt" },
    0x1063: { n:"Dat" },
    0x1064: { n:"PlotGrowth" },
    0x1065: { n:"SIIndex" },
    0x1066: { n:"GelFrame" },
    0x1067: { n:"BopPopCustom" },
    0x1068: { n:"Fbi2" },

    0x0000: { n:"Dimensions", f:parse_Dimensions },
    0x0002: { n:"BIFF2INT", f:parse_BIFF2INT },
    0x0005: { n:"BoolErr", f:parse_BoolErr },
    0x0007: { n:"String", f:parse_BIFF2STRING },
    0x0008: { n:"BIFF2ROW" },
    0x000b: { n:"Index" },
    0x0016: { n:"ExternCount", f:parseuint16 },
    0x001e: { n:"BIFF2FORMAT", f:parse_BIFF2Format },
    0x001f: { n:"BIFF2FMTCNT" }, /* 16-bit cnt of BIFF2FORMAT records */
    0x0020: { n:"BIFF2COLINFO" },
    0x0021: { n:"Array", f:parse_Array },
    0x0025: { n:"DefaultRowHeight", f:parse_DefaultRowHeight },
    0x0032: { n:"BIFF2FONTXTRA", f:parse_BIFF2FONTXTRA },
    0x0034: { n:"DDEObjName" },
    0x003e: { n:"BIFF2WINDOW2" },
    0x0043: { n:"BIFF2XF" },
    0x0045: { n:"BIFF2FONTCLR" },
    0x0056: { n:"BIFF4FMTCNT" }, /* 16-bit cnt, similar to BIFF2 */
    0x007e: { n:"RK" }, /* Not necessarily same as 0x027e */
    0x007f: { n:"ImData", f:parse_ImData },
    0x0087: { n:"Addin" },
    0x0088: { n:"Edg" },
    0x0089: { n:"Pub" },
    0x0091: { n:"Sub" },
    0x0094: { n:"LHRecord" },
    0x0095: { n:"LHNGraph" },
    0x0096: { n:"Sound" },
    0x00a9: { n:"CoordList" },
    0x00ab: { n:"GCW" },
    0x00bc: { n:"ShrFmla" }, /* Not necessarily same as 0x04bc */
    0x00bf: { n:"ToolbarHdr" },
    0x00c0: { n:"ToolbarEnd" },
    0x00c2: { n:"AddMenu" },
    0x00c3: { n:"DelMenu" },
    0x00d6: { n:"RString", f:parse_RString },
    0x00df: { n:"UDDesc" },
    0x00ea: { n:"TabIdConf" },
    0x0162: { n:"XL5Modify" },
    0x01a5: { n:"FileSharing2" },
    0x0209: { n:'BOF', f:parse_BOF },
    0x0218: { n:"Lbl", f:parse_Lbl },
    0x0223: { n:"ExternName", f:parse_ExternName },
    0x0231: { n:"Font" },
    0x0243: { n:"BIFF3XF" },
    0x0409: { n:'BOF', f:parse_BOF },
    0x0443: { n:"BIFF4XF" },
    0x086d: { n:"FeatInfo" },
    0x0873: { n:"FeatInfo11" },
    0x0881: { n:"SXAddl12" },
    0x08c0: { n:"AutoWebPub" },
    0x08c1: { n:"ListObj" },
    0x08c2: { n:"ListField" },
    0x08c3: { n:"ListDV" },
    0x08c4: { n:"ListCondFmt" },
    0x08c5: { n:"ListCF" },
    0x08c6: { n:"FMQry" },
    0x08c7: { n:"FMSQry" },
    0x08c8: { n:"PLV" },
    0x08c9: { n:"LnExt" },
    0x08ca: { n:"MkrExt" },
    0x08cb: { n:"CrtCoopt" },
    0x08d6: { n:"FRTArchId$", r:12 },

    0x7262: {}
  };

  var XLSRE = evert_key(XLSRecordEnum, 'n');
  function write_biff_rec(ba, type, payload, length) {
    var t = +type || +XLSRE[type];
    if(isNaN(t)) return;
    var len = length || (payload||[]).length || 0;
    var o = ba.next(4);
    o.write_shift(2, t);
    o.write_shift(2, len);
    if(len > 0 && is_buf(payload)) ba.push(payload);
  }

  function write_BIFF2Cell(out, r, c) {
    if(!out) out = new_buf(7);
    out.write_shift(2, r);
    out.write_shift(2, c);
    out.write_shift(2, 0);
    out.write_shift(1, 0);
    return out;
  }

  function write_BIFF2BERR(r, c, val, t) {
    var out = new_buf(9);
    write_BIFF2Cell(out, r, c);
    if(t == 'e') { out.write_shift(1, val); out.write_shift(1, 1); }
    else { out.write_shift(1, val?1:0); out.write_shift(1, 0); }
    return out;
  }

  /* TODO: codepage, large strings */
  function write_BIFF2LABEL(r, c, val) {
    var out = new_buf(8 + 2*val.length);
    write_BIFF2Cell(out, r, c);
    out.write_shift(1, val.length);
    out.write_shift(val.length, val, 'sbcs');
    return out.l < out.length ? out.slice(0, out.l) : out;
  }

  function write_ws_biff2_cell(ba, cell, R, C) {
    if(cell.v != null) switch(cell.t) {
      case 'd': case 'n':
        var v = cell.t == 'd' ? datenum(parseDate(cell.v)) : cell.v;
        if((v == (v|0)) && (v >= 0) && (v < 65536))
          write_biff_rec(ba, 0x0002, write_BIFF2INT(R, C, v));
        else
          write_biff_rec(ba, 0x0003, write_BIFF2NUM(R,C, v));
        return;
      case 'b': case 'e': write_biff_rec(ba, 0x0005, write_BIFF2BERR(R, C, cell.v, cell.t)); return;
      /* TODO: codepage, sst */
      case 's': case 'str':
        write_biff_rec(ba, 0x0004, write_BIFF2LABEL(R, C, cell.v));
        return;
    }
    write_biff_rec(ba, 0x0001, write_BIFF2Cell(null, R, C));
  }

  function write_ws_biff2(ba, ws, idx, opts) {
    var dense = Array.isArray(ws);
    var range = safe_decode_range(ws['!ref'] || "A1"), ref, rr = "", cols = [];
    if(range.e.c > 0xFF || range.e.r > 0x3FFF) {
      if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:IV16384");
      range.e.c = Math.min(range.e.c, 0xFF);
      range.e.r = Math.min(range.e.c, 0x3FFF);
      ref = encode_range(range);
    }
    for(var R = range.s.r; R <= range.e.r; ++R) {
      rr = encode_row(R);
      for(var C = range.s.c; C <= range.e.c; ++C) {
        if(R === range.s.r) cols[C] = encode_col(C);
        ref = cols[C] + rr;
        var cell = dense ? (ws[R]||[])[C] : ws[ref];
        if(!cell) continue;
        /* write cell */
        write_ws_biff2_cell(ba, cell, R, C, opts);
      }
    }
  }

  /* Based on test files */
  function write_biff2_buf(wb, opts) {
    var o = opts || {};
    if(DENSE != null && o.dense == null) o.dense = DENSE;
    var ba = buf_array();
    var idx = 0;
    for(var i=0;i<wb.SheetNames.length;++i) if(wb.SheetNames[i] == o.sheet) idx=i;
    if(idx == 0 && !!o.sheet && wb.SheetNames[0] != o.sheet) throw new Error("Sheet not found: " + o.sheet);
    write_biff_rec(ba, 0x0009, write_BOF(wb, 0x10, o));
    /* ... */
    write_ws_biff2(ba, wb.Sheets[wb.SheetNames[idx]], idx, o, wb);
    /* ... */
    write_biff_rec(ba, 0x000A);
    return ba.end();
  }

  function write_FONTS_biff8(ba, data, opts) {
    write_biff_rec(ba, "Font", write_Font({
      sz:12,
      color: {theme:1},
      name: "Arial",
      family: 2,
      scheme: "minor"
    }, opts));
  }


  function write_FMTS_biff8(ba, NF, opts) {
    if(!NF) return;
    [[5,8],[23,26],[41,44],[/*63*/50,/*66],[164,*/392]].forEach(function(r) {
      for(var i = r[0]; i <= r[1]; ++i) if(NF[i] != null) write_biff_rec(ba, "Format", write_Format(i, NF[i], opts));
    });
  }

  function write_FEAT(ba, ws) {
    /* [MS-XLS] 2.4.112 */
    var o = new_buf(19);
    o.write_shift(4, 0x867); o.write_shift(4, 0); o.write_shift(4, 0);
    o.write_shift(2, 3); o.write_shift(1, 1); o.write_shift(4, 0);
    write_biff_rec(ba, "FeatHdr", o);
    /* [MS-XLS] 2.4.111 */
    o = new_buf(39);
    o.write_shift(4, 0x868); o.write_shift(4, 0); o.write_shift(4, 0);
    o.write_shift(2, 3); o.write_shift(1, 0); o.write_shift(4, 0);
    o.write_shift(2, 1); o.write_shift(4, 4); o.write_shift(2, 0);
    write_Ref8U(safe_decode_range(ws['!ref']||"A1"), o);
    o.write_shift(4, 4);
    write_biff_rec(ba, "Feat", o);
  }

  function write_CELLXFS_biff8(ba, opts) {
    for(var i = 0; i < 16; ++i) write_biff_rec(ba, "XF", write_XF({numFmtId:0, style:true}, 0, opts));
    opts.cellXfs.forEach(function(c) {
      write_biff_rec(ba, "XF", write_XF(c, 0, opts));
    });
  }

  function write_ws_biff8_hlinks(ba, ws) {
    for(var R=0; R<ws['!links'].length; ++R) {
      var HL = ws['!links'][R];
      write_biff_rec(ba, "HLink", write_HLink(HL));
      if(HL[1].Tooltip) write_biff_rec(ba, "HLinkTooltip", write_HLinkTooltip(HL));
    }
    delete ws['!links'];
  }

  function write_ws_biff8_cell(ba, cell, R, C, opts) {
    var os = 16 + get_cell_style(opts.cellXfs, cell, opts);
    if(cell.v != null) switch(cell.t) {
      case 'd': case 'n':
        var v = cell.t == 'd' ? datenum(parseDate(cell.v)) : cell.v;
        /* TODO: emit RK as appropriate */
        write_biff_rec(ba, "Number", write_Number(R, C, v, os, opts));
        return;
      case 'b': case 'e': write_biff_rec(ba, 0x0205, write_BoolErr(R, C, cell.v, os, opts, cell.t)); return;
      /* TODO: codepage, sst */
      case 's': case 'str':
        write_biff_rec(ba, "Label", write_Label(R, C, cell.v, os, opts));
        return;
    }
    write_biff_rec(ba, "Blank", write_XLSCell(R, C, os));
  }

  /* [MS-XLS] 2.1.7.20.5 */
  function write_ws_biff8(idx, opts, wb) {
    var ba = buf_array();
    var s = wb.SheetNames[idx], ws = wb.Sheets[s] || {};
    var _WB = ((wb||{}).Workbook||{});
    var _sheet = ((_WB.Sheets||[])[idx]||{});
    var dense = Array.isArray(ws);
    var b8 = opts.biff == 8;
    var ref, rr = "", cols = [];
    var range = safe_decode_range(ws['!ref'] || "A1");
    var MAX_ROWS = b8 ? 65536 : 16384;
    if(range.e.c > 0xFF || range.e.r >= MAX_ROWS) {
      if(opts.WTF) throw new Error("Range " + (ws['!ref'] || "A1") + " exceeds format limit A1:IV16384");
      range.e.c = Math.min(range.e.c, 0xFF);
      range.e.r = Math.min(range.e.c, MAX_ROWS-1);
    }

    write_biff_rec(ba, 0x0809, write_BOF(wb, 0x10, opts));
    /* ... */
    write_biff_rec(ba, "CalcMode", writeuint16(1));
    write_biff_rec(ba, "CalcCount", writeuint16(100));
    write_biff_rec(ba, "CalcRefMode", writebool(true));
    write_biff_rec(ba, "CalcIter", writebool(false));
    write_biff_rec(ba, "CalcDelta", write_Xnum(0.001));
    write_biff_rec(ba, "CalcSaveRecalc", writebool(true));
    write_biff_rec(ba, "PrintRowCol", writebool(false));
    write_biff_rec(ba, "PrintGrid", writebool(false));
    write_biff_rec(ba, "GridSet", writeuint16(1));
    write_biff_rec(ba, "Guts", write_Guts([0,0]));
    /* ... */
    write_biff_rec(ba, "HCenter", writebool(false));
    write_biff_rec(ba, "VCenter", writebool(false));
    /* ... */
    write_biff_rec(ba, 0x200, write_Dimensions(range, opts));
    /* ... */

    if(b8) ws['!links'] = [];
    for(var R = range.s.r; R <= range.e.r; ++R) {
      rr = encode_row(R);
      for(var C = range.s.c; C <= range.e.c; ++C) {
        if(R === range.s.r) cols[C] = encode_col(C);
        ref = cols[C] + rr;
        var cell = dense ? (ws[R]||[])[C] : ws[ref];
        if(!cell) continue;
        /* write cell */
        write_ws_biff8_cell(ba, cell, R, C, opts);
        if(b8 && cell.l) ws['!links'].push([ref, cell.l]);
      }
    }
    var cname = _sheet.CodeName || _sheet.name || s;
    /* ... */
    if(b8 && _WB.Views) write_biff_rec(ba, "Window2", write_Window2(_WB.Views[0]));
    /* ... */
    if(b8 && (ws['!merges']||[]).length) write_biff_rec(ba, "MergeCells", write_MergeCells(ws['!merges']));
    /* ... */
    if(b8) write_ws_biff8_hlinks(ba, ws);
    /* ... */
    write_biff_rec(ba, "CodeName", write_XLUnicodeString(cname, opts));
    /* ... */
    if(b8) write_FEAT(ba, ws);
    /* ... */
    write_biff_rec(ba, "EOF");
    return ba.end();
  }

  /* [MS-XLS] 2.1.7.20.3 */
  function write_biff8_global(wb, bufs, opts) {
    var A = buf_array();
    var _WB = ((wb||{}).Workbook||{});
    var _sheets = (_WB.Sheets||[]);
    var _wb = _WB.WBProps||{};
    var b8 = opts.biff == 8, b5 = opts.biff == 5;
    write_biff_rec(A, 0x0809, write_BOF(wb, 0x05, opts));
    if(opts.bookType == "xla") write_biff_rec(A, "Addin");
    write_biff_rec(A, "InterfaceHdr", b8 ? writeuint16(0x04b0) : null);
    write_biff_rec(A, "Mms", writezeroes(2));
    if(b5) write_biff_rec(A, "ToolbarHdr");
    if(b5) write_biff_rec(A, "ToolbarEnd");
    write_biff_rec(A, "InterfaceEnd");
    write_biff_rec(A, "WriteAccess", write_WriteAccess("SheetJS", opts));
    write_biff_rec(A, "CodePage", writeuint16(b8 ? 0x04b0 : 0x04E4));
    if(b8) write_biff_rec(A, "DSF", writeuint16(0));
    if(b8) write_biff_rec(A, "Excel9File");
    write_biff_rec(A, "RRTabId", write_RRTabId(wb.SheetNames.length));
    if(b8 && wb.vbaraw) {
      write_biff_rec(A, "ObProj");
      var cname = _wb.CodeName || "ThisWorkbook";
      write_biff_rec(A, "CodeName", write_XLUnicodeString(cname, opts));
    }
    write_biff_rec(A, "BuiltInFnGroupCount", writeuint16(0x11));
    write_biff_rec(A, "WinProtect", writebool(false));
    write_biff_rec(A, "Protect", writebool(false));
    write_biff_rec(A, "Password", writeuint16(0));
    if(b8) write_biff_rec(A, "Prot4Rev", writebool(false));
    if(b8) write_biff_rec(A, "Prot4RevPass", writeuint16(0));
    write_biff_rec(A, "Window1", write_Window1(opts));
    write_biff_rec(A, "Backup", writebool(false));
    write_biff_rec(A, "HideObj", writeuint16(0));
    write_biff_rec(A, "Date1904", writebool(safe1904(wb)=="true"));
    write_biff_rec(A, "CalcPrecision", writebool(true));
    if(b8) write_biff_rec(A, "RefreshAll", writebool(false));
    write_biff_rec(A, "BookBool", writeuint16(0));
    /* ... */
    write_FONTS_biff8(A, wb, opts);
    write_FMTS_biff8(A, wb.SSF, opts);
    write_CELLXFS_biff8(A, opts);
    /* ... */
    if(b8) write_biff_rec(A, "UsesELFs", writebool(false));
    var a = A.end();

    var C = buf_array();
    if(b8) write_biff_rec(C, "Country", write_Country());
    /* BIFF8: [SST *Continue] ExtSST */
    write_biff_rec(C, "EOF");
    var c = C.end();

    var B = buf_array();
    var blen = 0, j = 0;
    for(j = 0; j < wb.SheetNames.length; ++j) blen += (b8 ? 12 : 11) + (b8 ? 2 : 1) * wb.SheetNames[j].length;
    var start = a.length + blen + c.length;
    for(j = 0; j < wb.SheetNames.length; ++j) {
      var _sheet = _sheets[j] || ({});
      write_biff_rec(B, "BoundSheet8", write_BoundSheet8({pos:start, hs:_sheet.Hidden||0, dt:0, name:wb.SheetNames[j]}, opts));
      start += bufs[j].length;
    }
    /* 1*BoundSheet8 */
    var b = B.end();
    if(blen != b.length) throw new Error("BS8 " + blen + " != " + b.length);

    var out = [];
    if(a.length) out.push(a);
    if(b.length) out.push(b);
    if(c.length) out.push(c);
    return __toBuffer([out]);
  }

  /* [MS-XLS] 2.1.7.20 Workbook Stream */
  function write_biff8_buf(wb, opts) {
    var o = opts || {};
    var bufs = [];

    if(wb && !wb.SSF) {
      wb.SSF = SSF.get_table();
    }
    if(wb && wb.SSF) {
      make_ssf(SSF); SSF.load_table(wb.SSF);
      // $FlowIgnore
      o.revssf = evert_num(wb.SSF); o.revssf[wb.SSF[65535]] = 0;
      o.ssf = wb.SSF;
    }
    o.cellXfs = [];
    o.Strings = []; o.Strings.Count = 0; o.Strings.Unique = 0;
    get_cell_style(o.cellXfs, {}, {revssf:{"General":0}});

    for(var i = 0; i < wb.SheetNames.length; ++i) bufs[bufs.length] = write_ws_biff8(i, o, wb);
    bufs.unshift(write_biff8_global(wb, bufs, o));
    return __toBuffer([bufs]);
  }

  function write_biff_buf(wb, opts) {
    var o = opts || {};
    switch(o.biff || 2) {
      case 8: case 5: return write_biff8_buf(wb, opts);
      case 4: case 3: case 2: return write_biff2_buf(wb, opts);
    }
    throw new Error("invalid type " + o.bookType + " for BIFF");
  }
  /* note: browser DOM element cannot see mso- style attrs, must parse */
  var HTML_ = (function() {
    function html_to_sheet(str, _opts) {
      var opts = _opts || {};
      if(DENSE != null && opts.dense == null) opts.dense = DENSE;
      var ws = opts.dense ? ([]) : ({});
      var mtch = str.match(/<table/i);
      if(!mtch) throw new Error("Invalid HTML: could not find <table>");
      var mtch2 = str.match(/<\/table/i);
      var i = mtch.index, j = mtch2 && mtch2.index || str.length;
      var rows = split_regex(str.slice(i, j), /(:?<tr[^>]*>)/i, "<tr>");
      var R = -1, C = 0, RS = 0, CS = 0;
      var range = {s:{r:10000000, c:10000000},e:{r:0,c:0}};
      var merges = [];
      for(i = 0; i < rows.length; ++i) {
        var row = rows[i].trim();
        var hd = row.slice(0,3).toLowerCase();
        if(hd == "<tr") { ++R; if(opts.sheetRows && opts.sheetRows <= R) { --R; break; } C = 0; continue; }
        if(hd != "<td" && hd != "<th") continue;
        var cells = row.split(/<\/t[dh]>/i);
        for(j = 0; j < cells.length; ++j) {
          var cell = cells[j].trim();
          if(!cell.match(/<t[dh]/i)) continue;
          var m = cell, cc = 0;
          /* TODO: parse styles etc */
          while(m.charAt(0) == "<" && (cc = m.indexOf(">")) > -1) m = m.slice(cc+1);
          var tag = parsexmltag(cell.slice(0, cell.indexOf(">")));
          CS = tag.colspan ? +tag.colspan : 1;
          if((RS = +tag.rowspan)>1 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
          var _t = tag.t || "";
          /* TODO: generate stub cells */
          if(!m.length) { C += CS; continue; }
          m = htmldecode(m);
          if(range.s.r > R) range.s.r = R; if(range.e.r < R) range.e.r = R;
          if(range.s.c > C) range.s.c = C; if(range.e.c < C) range.e.c = C;
          if(!m.length) continue;
          var o = {t:'s', v:m};
          if(opts.raw || !m.trim().length || _t == 's'){}
          else if(m === 'TRUE') o = {t:'b', v:true};
          else if(m === 'FALSE') o = {t:'b', v:false};
          else if(!isNaN(fuzzynum(m))) o = {t:'n', v:fuzzynum(m)};
          else if(!isNaN(fuzzydate(m).getDate())) {
            o = ({t:'d', v:parseDate(m)});
            if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
            o.z = opts.dateNF || SSF._table[14];
          }
          if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
          else ws[encode_cell({r:R, c:C})] = o;
          C += CS;
        }
      }
      ws['!ref'] = encode_range(range);
      return ws;
    }
    function html_to_book(str, opts) {
      return sheet_to_workbook(html_to_sheet(str, opts), opts);
    }
    function make_html_row(ws, r, R, o) {
      var M = (ws['!merges'] ||[]);
      var oo = [];
      for(var C = r.s.c; C <= r.e.c; ++C) {
        var RS = 0, CS = 0;
        for(var j = 0; j < M.length; ++j) {
          if(M[j].s.r > R || M[j].s.c > C) continue;
          if(M[j].e.r < R || M[j].e.c < C) continue;
          if(M[j].s.r < R || M[j].s.c < C) { RS = -1; break; }
          RS = M[j].e.r - M[j].s.r + 1; CS = M[j].e.c - M[j].s.c + 1; break;
        }
        if(RS < 0) continue;
        var coord = encode_cell({r:R,c:C});
        var cell = o.dense ? (ws[R]||[])[C] : ws[coord];
        var sp = {};
        if(RS > 1) sp.rowspan = RS;
        if(CS > 1) sp.colspan = CS;
        /* TODO: html entities */
        var w = (cell && cell.v != null) && (cell.h || escapehtml(cell.w || (format_cell(cell), cell.w) || "")) || "";
        sp.t = cell && cell.t || 'z';
        if(o.editable) w = '<span contenteditable="true">' + w + '</span>';
        sp.id = "sjs-" + coord;
        oo.push(writextag('td', w, sp));
      }
      var preamble = "<tr>";
      return preamble + oo.join("") + "</tr>";
    }
    function make_html_preamble(ws, R, o) {
      var out = [];
      return out.join("") + '<table' + (o && o.id ? ' id="' + o.id + '"' : "") + '>';
    }
    var _BEGIN = '<html><head><meta charset="utf-8"/><title>SheetJS Table Export</title></head><body>';
    var _END = '</body></html>';
    function sheet_to_html(ws, opts/*, wb:?Workbook*/) {
      var o = opts || {};
      var header = o.header != null ? o.header : _BEGIN;
      var footer = o.footer != null ? o.footer : _END;
      var out = [header];
      var r = decode_range(ws['!ref']);
      o.dense = Array.isArray(ws);
      out.push(make_html_preamble(ws, r, o));
      for(var R = r.s.r; R <= r.e.r; ++R) out.push(make_html_row(ws, r, R, o));
      out.push("</table>" + footer);
      return out.join("");
    }

    return {
      to_workbook: html_to_book,
      to_sheet: html_to_sheet,
      _row: make_html_row,
      BEGIN: _BEGIN,
      END: _END,
      _preamble: make_html_preamble,
      from_sheet: sheet_to_html
    };
  })();

  function parse_dom_table(table, _opts) {
    var opts = _opts || {};
    if(DENSE != null) opts.dense = DENSE;
    var ws = opts.dense ? ([]) : ({});
    var rows = table.getElementsByTagName('tr');
    var sheetRows = opts.sheetRows || 10000000;
    var range = {s:{r:0,c:0},e:{r:0,c:0}};
    var merges = [], midx = 0;
    var rowinfo = [];
    var _R = 0, R = 0, _C, C, RS, CS;
    for(; _R < rows.length && R < sheetRows; ++_R) {
      var row = rows[_R];
      if (is_dom_element_hidden(row)) {
        if (opts.display) continue;
        rowinfo[R] = {hidden: true};
      }
      var elts = (row.children);
      for(_C = C = 0; _C < elts.length; ++_C) {
        var elt = elts[_C];
        if (opts.display && is_dom_element_hidden(elt)) continue;
        var v = htmldecode(elt.innerHTML);
        for(midx = 0; midx < merges.length; ++midx) {
          var m = merges[midx];
          if(m.s.c == C && m.s.r <= R && R <= m.e.r) { C = m.e.c+1; midx = -1; }
        }
        /* TODO: figure out how to extract nonstandard mso- style */
        CS = +elt.getAttribute("colspan") || 1;
        if((RS = +elt.getAttribute("rowspan"))>0 || CS>1) merges.push({s:{r:R,c:C},e:{r:R + (RS||1) - 1, c:C + CS - 1}});
        var o = {t:'s', v:v};
        var _t = elt.getAttribute("t") || "";
        if(v != null) {
          if(v.length == 0) o.t = _t || 'z';
          else if(opts.raw || v.trim().length == 0 || _t == "s"){}
          else if(v === 'TRUE') o = {t:'b', v:true};
          else if(v === 'FALSE') o = {t:'b', v:false};
          else if(!isNaN(fuzzynum(v))) o = {t:'n', v:fuzzynum(v)};
          else if(!isNaN(fuzzydate(v).getDate())) {
            o = ({t:'d', v:parseDate(v)});
            if(!opts.cellDates) o = ({t:'n', v:datenum(o.v)});
            o.z = opts.dateNF || SSF._table[14];
          }
        }
        if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = o; }
        else ws[encode_cell({c:C, r:R})] = o;
        if(range.e.c < C) range.e.c = C;
        C += CS;
      }
      ++R;
    }
    if(merges.length) ws['!merges'] = merges;
    if(rowinfo.length) ws['!rows'] = rowinfo;
    range.e.r = R - 1;
    ws['!ref'] = encode_range(range);
    if(R >= sheetRows) ws['!fullref'] = encode_range((range.e.r = rows.length-_R+R-1,range)); // We can count the real number of rows to parse but we don't to improve the performance
    return ws;
  }

  function table_to_book(table, opts) {
    return sheet_to_workbook(parse_dom_table(table, opts), opts);
  }

  function is_dom_element_hidden(element) {
    var display = '';
    var get_computed_style = get_get_computed_style_function(element);
    if(get_computed_style) display = get_computed_style(element).getPropertyValue('display');
    if(!display) display = element.style.display; // Fallback for cases when getComputedStyle is not available (e.g. an old browser or some Node.js environments) or doesn't work (e.g. if the element is not inserted to a document)
    return display === 'none';
  }

  /* global getComputedStyle */
  function get_get_computed_style_function(element) {
    // The proper getComputedStyle implementation is the one defined in the element window
    if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
    // If it is not available, try to get one from the global namespace
    if(typeof getComputedStyle === 'function') return getComputedStyle;
    return null;
  }
  /* OpenDocument */
  var parse_content_xml = (function() {

    var parse_text_p = function(text) {
      /* 6.1.2 White Space Characters */
      var fixed = text
        .replace(/[\t\r\n]/g, " ").trim().replace(/ +/g, " ")
        .replace(/<text:s\/>/g," ")
        .replace(/<text:s text:c="(\d+)"\/>/g, function($$,$1) { return Array(parseInt($1,10)+1).join(" "); })
        .replace(/<text:tab[^>]*\/>/g,"\t")
        .replace(/<text:line-break\/>/g,"\n");
      var v = unescapexml(fixed.replace(/<[^>]*>/g,""));

      return [v];
    };

    var number_formats = {
      /* ods name: [short ssf fmt, long ssf fmt] */
      day:           ["d",   "dd"],
      month:         ["m",   "mm"],
      year:          ["y",   "yy"],
      hours:         ["h",   "hh"],
      minutes:       ["m",   "mm"],
      seconds:       ["s",   "ss"],
      "am-pm":       ["A/P", "AM/PM"],
      "day-of-week": ["ddd", "dddd"],
      era:           ["e",   "ee"],
      /* there is no native representation of LO "Q" format */
      quarter:       ["\\Qm", "m\\\"th quarter\""]
    };

    return function pcx(d, _opts) {
      var opts = _opts || {};
      if(DENSE != null && opts.dense == null) opts.dense = DENSE;
      var str = xlml_normalize(d);
      var state = [], tmp;
      var tag;
      var NFtag = {name:""}, NF = "", pidx = 0;
      var sheetag;
      var rowtag;
      var Sheets = {}, SheetNames = [];
      var ws = opts.dense ? ([]) : ({});
      var Rn, q;
      var ctag = ({value:""});
      var textp = "", textpidx = 0, textptag;
      var textR = [];
      var R = -1, C = -1, range = {s: {r:1000000,c:10000000}, e: {r:0, c:0}};
      var row_ol = 0;
      var number_format_map = {};
      var merges = [], mrange = {}, mR = 0, mC = 0;
      var rowinfo = [], rowpeat = 1, colpeat = 1;
      var arrayf = [];
      var WB = {Names:[]};
      var atag = ({});
      var _Ref = ["", ""];
      var comments = [], comment = ({});
      var creator = "", creatoridx = 0;
      var isstub = false, intable = false;
      var i = 0;
      xlmlregex.lastIndex = 0;
      str = str.replace(/<!--([\s\S]*?)-->/mg,"").replace(/<!DOCTYPE[^\[]*\[[^\]]*\]>/gm,"");
      while((Rn = xlmlregex.exec(str))) switch((Rn[3]=Rn[3].replace(/_.*$/,""))) {

        case 'table': case '工作表': // 9.1.2 <table:table>
          if(Rn[1]==='/') {
            if(range.e.c >= range.s.c && range.e.r >= range.s.r) ws['!ref'] = encode_range(range);
            if(opts.sheetRows > 0 && opts.sheetRows <= range.e.r) {
              ws['!fullref'] = ws['!ref'];
              range.e.r = opts.sheetRows - 1;
              ws['!ref'] = encode_range(range);
            }
            if(merges.length) ws['!merges'] = merges;
            if(rowinfo.length) ws["!rows"] = rowinfo;
            sheetag.name = sheetag['名称'] || sheetag.name;
            if(typeof JSON !== 'undefined') JSON.stringify(sheetag);
            SheetNames.push(sheetag.name);
            Sheets[sheetag.name] = ws;
            intable = false;
          }
          else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
            sheetag = parsexmltag(Rn[0], false);
            R = C = -1;
            range.s.r = range.s.c = 10000000; range.e.r = range.e.c = 0;
            ws = opts.dense ? ([]) : ({}); merges = [];
            rowinfo = [];
            intable = true;
          }
          break;

        case 'table-row-group': // 9.1.9 <table:table-row-group>
          if(Rn[1] === "/") --row_ol; else ++row_ol;
          break;
        case 'table-row': case '行': // 9.1.3 <table:table-row>
          if(Rn[1] === '/') { R+=rowpeat; rowpeat = 1; break; }
          rowtag = parsexmltag(Rn[0], false);
          if(rowtag['行号']) R = rowtag['行号'] - 1; else if(R == -1) R = 0;
          rowpeat = +rowtag['number-rows-repeated'] || 1;
          /* TODO: remove magic */
          if(rowpeat < 10) for(i = 0; i < rowpeat; ++i) if(row_ol > 0) rowinfo[R + i] = {level: row_ol};
          C = -1; break;
        case 'covered-table-cell': // 9.1.5 <table:covered-table-cell>
          if(Rn[1] !== '/') ++C;
          if(opts.sheetStubs) {
            if(opts.dense) { if(!ws[R]) ws[R] = []; ws[R][C] = {t:'z'}; }
            else ws[encode_cell({r:R,c:C})] = {t:'z'};
          }
          textp = ""; textR = [];
          break; /* stub */
        case 'table-cell': case '数据':
          if(Rn[0].charAt(Rn[0].length-2) === '/') {
            ++C;
            ctag = parsexmltag(Rn[0], false);
            colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
            q = ({t:'z', v:null});
            if(ctag.formula && opts.cellFormula != false) q.f = ods_to_csf_formula(unescapexml(ctag.formula));
            if((ctag['数据类型'] || ctag['value-type']) == "string") {
              q.t = "s"; q.v = unescapexml(ctag['string-value'] || "");
              if(opts.dense) {
                if(!ws[R]) ws[R] = [];
                ws[R][C] = q;
              } else {
                ws[encode_cell({r:R,c:C})] = q;
              }
            }
            C+= colpeat-1;
          } else if(Rn[1]!=='/') {
            ++C;
            colpeat = 1;
            var rptR = rowpeat ? R + rowpeat - 1 : R;
            if(C > range.e.c) range.e.c = C;
            if(C < range.s.c) range.s.c = C;
            if(R < range.s.r) range.s.r = R;
            if(rptR > range.e.r) range.e.r = rptR;
            ctag = parsexmltag(Rn[0], false);
            comments = []; comment = ({});
            q = ({t:ctag['数据类型'] || ctag['value-type'], v:null});
            if(opts.cellFormula) {
              if(ctag.formula) ctag.formula = unescapexml(ctag.formula);
              if(ctag['number-matrix-columns-spanned'] && ctag['number-matrix-rows-spanned']) {
                mR = parseInt(ctag['number-matrix-rows-spanned'],10) || 0;
                mC = parseInt(ctag['number-matrix-columns-spanned'],10) || 0;
                mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
                q.F = encode_range(mrange);
                arrayf.push([mrange, q.F]);
              }
              if(ctag.formula) q.f = ods_to_csf_formula(ctag.formula);
              else for(i = 0; i < arrayf.length; ++i)
                if(R >= arrayf[i][0].s.r && R <= arrayf[i][0].e.r)
                  if(C >= arrayf[i][0].s.c && C <= arrayf[i][0].e.c)
                    q.F = arrayf[i][1];
            }
            if(ctag['number-columns-spanned'] || ctag['number-rows-spanned']) {
              mR = parseInt(ctag['number-rows-spanned'],10) || 0;
              mC = parseInt(ctag['number-columns-spanned'],10) || 0;
              mrange = {s: {r:R,c:C}, e:{r:R + mR-1,c:C + mC-1}};
              merges.push(mrange);
            }

            /* 19.675.2 table:number-columns-repeated */
            if(ctag['number-columns-repeated']) colpeat = parseInt(ctag['number-columns-repeated'], 10);

            /* 19.385 office:value-type */
            switch(q.t) {
              case 'boolean': q.t = 'b'; q.v = parsexmlbool(ctag['boolean-value']); break;
              case 'float': q.t = 'n'; q.v = parseFloat(ctag.value); break;
              case 'percentage': q.t = 'n'; q.v = parseFloat(ctag.value); break;
              case 'currency': q.t = 'n'; q.v = parseFloat(ctag.value); break;
              case 'date': q.t = 'd'; q.v = parseDate(ctag['date-value']);
                if(!opts.cellDates) { q.t = 'n'; q.v = datenum(q.v); }
                q.z = 'm/d/yy'; break;
              case 'time': q.t = 'n'; q.v = parse_isodur(ctag['time-value'])/86400; break;
              case 'number': q.t = 'n'; q.v = parseFloat(ctag['数据数值']); break;
              default:
                if(q.t === 'string' || q.t === 'text' || !q.t) {
                  q.t = 's';
                  if(ctag['string-value'] != null) { textp = unescapexml(ctag['string-value']); textR = []; }
                } else throw new Error('Unsupported value type ' + q.t);
            }
          } else {
            isstub = false;
            if(q.t === 's') {
              q.v = textp || '';
              if(textR.length) q.R = textR;
              isstub = textpidx == 0;
            }
            if(atag.Target) q.l = atag;
            if(comments.length > 0) { q.c = comments; comments = []; }
            if(textp && opts.cellText !== false) q.w = textp;
            if(!isstub || opts.sheetStubs) {
              if(!(opts.sheetRows && opts.sheetRows <= R)) {
                for(var rpt = 0; rpt < rowpeat; ++rpt) {
                  colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
                  if(opts.dense) {
                    if(!ws[R + rpt]) ws[R + rpt] = [];
                    ws[R + rpt][C] = rpt == 0 ? q : dup(q);
                    while(--colpeat > 0) ws[R + rpt][C + colpeat] = dup(q);
                  } else {
                    ws[encode_cell({r:R + rpt,c:C})] = q;
                    while(--colpeat > 0) ws[encode_cell({r:R + rpt,c:C + colpeat})] = dup(q);
                  }
                  if(range.e.c <= C) range.e.c = C;
                }
              }
            }
            colpeat = parseInt(ctag['number-columns-repeated']||"1", 10);
            C += colpeat-1; colpeat = 0;
            q = {};
            textp = ""; textR = [];
          }
          atag = ({});
          break; // 9.1.4 <table:table-cell>

        /* pure state */
        case 'document': // TODO: <office:document> is the root for FODS
        case 'document-content': case '电子表格文档': // 3.1.3.2 <office:document-content>
        case 'spreadsheet': case '主体': // 3.7 <office:spreadsheet>
        case 'scripts': // 3.12 <office:scripts>
        case 'styles': // TODO <office:styles>
        case 'font-face-decls': // 3.14 <office:font-face-decls>
          if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
          else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], true]);
          break;

        case 'annotation': // 14.1 <office:annotation>
          if(Rn[1]==='/'){
            if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
            comment.t = textp;
            if(textR.length) comment.R = textR;
            comment.a = creator;
            comments.push(comment);
          }
          else if(Rn[0].charAt(Rn[0].length-2) !== '/') {state.push([Rn[3], false]);}
          creator = ""; creatoridx = 0;
          textp = ""; textpidx = 0; textR = [];
          break;

        case 'creator': // 4.3.2.7 <dc:creator>
          if(Rn[1]==='/') { creator = str.slice(creatoridx,Rn.index); }
          else creatoridx = Rn.index + Rn[0].length;
          break;

        /* ignore state */
        case 'meta': case '元数据': // TODO: <office:meta> <uof:元数据> FODS/UOF
        case 'settings': // TODO: <office:settings>
        case 'config-item-set': // TODO: <office:config-item-set>
        case 'config-item-map-indexed': // TODO: <office:config-item-map-indexed>
        case 'config-item-map-entry': // TODO: <office:config-item-map-entry>
        case 'config-item-map-named': // TODO: <office:config-item-map-entry>
        case 'shapes': // 9.2.8 <table:shapes>
        case 'frame': // 10.4.2 <draw:frame>
        case 'text-box': // 10.4.3 <draw:text-box>
        case 'image': // 10.4.4 <draw:image>
        case 'data-pilot-tables': // 9.6.2 <table:data-pilot-tables>
        case 'list-style': // 16.30 <text:list-style>
        case 'form': // 13.13 <form:form>
        case 'dde-links': // 9.8 <table:dde-links>
        case 'event-listeners': // TODO
        case 'chart': // TODO
          if(Rn[1]==='/'){if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;}
          else if(Rn[0].charAt(Rn[0].length-2) !== '/') state.push([Rn[3], false]);
          textp = ""; textpidx = 0; textR = [];
          break;

        case 'scientific-number': // TODO: <number:scientific-number>
          break;
        case 'currency-symbol': // TODO: <number:currency-symbol>
          break;
        case 'currency-style': // TODO: <number:currency-style>
          break;
        case 'number-style': // 16.27.2 <number:number-style>
        case 'percentage-style': // 16.27.9 <number:percentage-style>
        case 'date-style': // 16.27.10 <number:date-style>
        case 'time-style': // 16.27.18 <number:time-style>
          if(Rn[1]==='/'){
            number_format_map[NFtag.name] = NF;
            if((tmp=state.pop())[0]!==Rn[3]) throw "Bad state: "+tmp;
          } else if(Rn[0].charAt(Rn[0].length-2) !== '/') {
            NF = "";
            NFtag = parsexmltag(Rn[0], false);
            state.push([Rn[3], true]);
          } break;

        case 'script': break; // 3.13 <office:script>
        case 'libraries': break; // TODO: <ooo:libraries>
        case 'automatic-styles': break; // 3.15.3 <office:automatic-styles>
        case 'master-styles': break; // TODO: <office:master-styles>

        case 'default-style': // TODO: <style:default-style>
        case 'page-layout': break; // TODO: <style:page-layout>
        case 'style': // 16.2 <style:style>
          break;
        case 'map': break; // 16.3 <style:map>
        case 'font-face': break; // 16.21 <style:font-face>

        case 'paragraph-properties': break; // 17.6 <style:paragraph-properties>
        case 'table-properties': break; // 17.15 <style:table-properties>
        case 'table-column-properties': break; // 17.16 <style:table-column-properties>
        case 'table-row-properties': break; // 17.17 <style:table-row-properties>
        case 'table-cell-properties': break; // 17.18 <style:table-cell-properties>

        case 'number': // 16.27.3 <number:number>
          switch(state[state.length-1][0]) {
            case 'time-style':
            case 'date-style':
              tag = parsexmltag(Rn[0], false);
              NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
          } break;

        case 'fraction': break; // TODO 16.27.6 <number:fraction>

        case 'day': // 16.27.11 <number:day>
        case 'month': // 16.27.12 <number:month>
        case 'year': // 16.27.13 <number:year>
        case 'era': // 16.27.14 <number:era>
        case 'day-of-week': // 16.27.15 <number:day-of-week>
        case 'week-of-year': // 16.27.16 <number:week-of-year>
        case 'quarter': // 16.27.17 <number:quarter>
        case 'hours': // 16.27.19 <number:hours>
        case 'minutes': // 16.27.20 <number:minutes>
        case 'seconds': // 16.27.21 <number:seconds>
        case 'am-pm': // 16.27.22 <number:am-pm>
          switch(state[state.length-1][0]) {
            case 'time-style':
            case 'date-style':
              tag = parsexmltag(Rn[0], false);
              NF += number_formats[Rn[3]][tag.style==='long'?1:0]; break;
          } break;

        case 'boolean-style': break; // 16.27.23 <number:boolean-style>
        case 'boolean': break; // 16.27.24 <number:boolean>
        case 'text-style': break; // 16.27.25 <number:text-style>
        case 'text': // 16.27.26 <number:text>
          if(Rn[0].slice(-2) === "/>") break;
          else if(Rn[1]==="/") switch(state[state.length-1][0]) {
            case 'number-style':
            case 'date-style':
            case 'time-style':
              NF += str.slice(pidx, Rn.index);
              break;
          }
          else pidx = Rn.index + Rn[0].length;
          break;

        case 'named-range': // 9.4.12 <table:named-range>
          tag = parsexmltag(Rn[0], false);
          _Ref = ods_to_csf_3D(tag['cell-range-address']);
          var nrange = ({Name:tag.name, Ref:_Ref[0] + '!' + _Ref[1]});
          if(intable) nrange.Sheet = SheetNames.length;
          WB.Names.push(nrange);
          break;

        case 'text-content': break; // 16.27.27 <number:text-content>
        case 'text-properties': break; // 16.27.27 <style:text-properties>
        case 'embedded-text': break; // 16.27.4 <number:embedded-text>

        case 'body': case '电子表格': break; // 3.3 16.9.6 19.726.3

        case 'forms': break; // 12.25.2 13.2
        case 'table-column': break; // 9.1.6 <table:table-column>
        case 'table-header-rows': break; // 9.1.7 <table:table-header-rows>
        case 'table-rows': break; // 9.1.12 <table:table-rows>
        /* TODO: outline levels */
        case 'table-column-group': break; // 9.1.10 <table:table-column-group>
        case 'table-header-columns': break; // 9.1.11 <table:table-header-columns>
        case 'table-columns': break; // 9.1.12 <table:table-columns>

        case 'null-date': break; // 9.4.2 <table:null-date> TODO: date1904

        case 'graphic-properties': break; // 17.21 <style:graphic-properties>
        case 'calculation-settings': break; // 9.4.1 <table:calculation-settings>
        case 'named-expressions': break; // 9.4.11 <table:named-expressions>
        case 'label-range': break; // 9.4.9 <table:label-range>
        case 'label-ranges': break; // 9.4.10 <table:label-ranges>
        case 'named-expression': break; // 9.4.13 <table:named-expression>
        case 'sort': break; // 9.4.19 <table:sort>
        case 'sort-by': break; // 9.4.20 <table:sort-by>
        case 'sort-groups': break; // 9.4.22 <table:sort-groups>

        case 'tab': break; // 6.1.4 <text:tab>
        case 'line-break': break; // 6.1.5 <text:line-break>
        case 'span': break; // 6.1.7 <text:span>
        case 'p': case '文本串': // 5.1.3 <text:p>
          if(Rn[1]==='/' && (!ctag || !ctag['string-value'])) {
            var ptp = parse_text_p(str.slice(textpidx,Rn.index), textptag);
            textp = (textp.length > 0 ? textp + "\n" : "") + ptp[0];
          } else { textptag = parsexmltag(Rn[0], false); textpidx = Rn.index + Rn[0].length; }
          break; // <text:p>
        case 's': break; // <text:s>

        case 'database-range': // 9.4.15 <table:database-range>
          if(Rn[1]==='/') break;
          try {
            _Ref = ods_to_csf_3D(parsexmltag(Rn[0])['target-range-address']);
            Sheets[_Ref[0]]['!autofilter'] = { ref:_Ref[1] };
          } catch(e) {/* empty */}
          break;

        case 'date': break; // <*:date>

        case 'object': break; // 10.4.6.2 <draw:object>
        case 'title': case '标题': break; // <*:title> OR <uof:标题>
        case 'desc': break; // <*:desc>
        case 'binary-data': break; // 10.4.5 TODO: b64 blob

        /* 9.2 Advanced Tables */
        case 'table-source': break; // 9.2.6
        case 'scenario': break; // 9.2.6

        case 'iteration': break; // 9.4.3 <table:iteration>
        case 'content-validations': break; // 9.4.4 <table:
        case 'content-validation': break; // 9.4.5 <table:
        case 'help-message': break; // 9.4.6 <table:
        case 'error-message': break; // 9.4.7 <table:
        case 'database-ranges': break; // 9.4.14 <table:database-ranges>
        case 'filter': break; // 9.5.2 <table:filter>
        case 'filter-and': break; // 9.5.3 <table:filter-and>
        case 'filter-or': break; // 9.5.4 <table:filter-or>
        case 'filter-condition': break; // 9.5.5 <table:filter-condition>

        case 'list-level-style-bullet': break; // 16.31 <text:
        case 'list-level-style-number': break; // 16.32 <text:
        case 'list-level-properties': break; // 17.19 <style:

        /* 7.3 Document Fields */
        case 'sender-firstname': // 7.3.6.2
        case 'sender-lastname': // 7.3.6.3
        case 'sender-initials': // 7.3.6.4
        case 'sender-title': // 7.3.6.5
        case 'sender-position': // 7.3.6.6
        case 'sender-email': // 7.3.6.7
        case 'sender-phone-private': // 7.3.6.8
        case 'sender-fax': // 7.3.6.9
        case 'sender-company': // 7.3.6.10
        case 'sender-phone-work': // 7.3.6.11
        case 'sender-street': // 7.3.6.12
        case 'sender-city': // 7.3.6.13
        case 'sender-postal-code': // 7.3.6.14
        case 'sender-country': // 7.3.6.15
        case 'sender-state-or-province': // 7.3.6.16
        case 'author-name': // 7.3.7.1
        case 'author-initials': // 7.3.7.2
        case 'chapter': // 7.3.8
        case 'file-name': // 7.3.9
        case 'template-name': // 7.3.9
        case 'sheet-name': // 7.3.9
          break;

        case 'event-listener':
          break;
        /* TODO: FODS Properties */
        case 'initial-creator':
        case 'creation-date':
        case 'print-date':
        case 'generator':
        case 'document-statistic':
        case 'user-defined':
        case 'editing-duration':
        case 'editing-cycles':
          break;

        /* TODO: FODS Config */
        case 'config-item':
          break;

        /* TODO: style tokens */
        case 'page-number': break; // TODO <text:page-number>
        case 'page-count': break; // TODO <text:page-count>
        case 'time': break; // TODO <text:time>

        /* 9.3 Advanced Table Cells */
        case 'cell-range-source': break; // 9.3.1 <table:
        case 'detective': break; // 9.3.2 <table:
        case 'operation': break; // 9.3.3 <table:
        case 'highlighted-range': break; // 9.3.4 <table:

        /* 9.6 Data Pilot Tables <table: */
        case 'data-pilot-table': // 9.6.3
        case 'source-cell-range': // 9.6.5
        case 'source-service': // 9.6.6
        case 'data-pilot-field': // 9.6.7
        case 'data-pilot-level': // 9.6.8
        case 'data-pilot-subtotals': // 9.6.9
        case 'data-pilot-subtotal': // 9.6.10
        case 'data-pilot-members': // 9.6.11
        case 'data-pilot-member': // 9.6.12
        case 'data-pilot-display-info': // 9.6.13
        case 'data-pilot-sort-info': // 9.6.14
        case 'data-pilot-layout-info': // 9.6.15
        case 'data-pilot-field-reference': // 9.6.16
        case 'data-pilot-groups': // 9.6.17
        case 'data-pilot-group': // 9.6.18
        case 'data-pilot-group-member': // 9.6.19
          break;

        /* 10.3 Drawing Shapes */
        case 'rect': // 10.3.2
          break;

        /* 14.6 DDE Connections */
        case 'dde-connection-decls': // 14.6.2 <text:
        case 'dde-connection-decl': // 14.6.3 <text:
        case 'dde-link': // 14.6.4 <table:
        case 'dde-source': // 14.6.5 <office:
          break;

        case 'properties': break; // 13.7 <form:properties>
        case 'property': break; // 13.8 <form:property>

        case 'a': // 6.1.8 hyperlink
          if(Rn[1]!== '/') {
            atag = parsexmltag(Rn[0], false);
            if(!atag.href) break;
            atag.Target = atag.href; delete atag.href;
            if(atag.Target.charAt(0) == "#" && atag.Target.indexOf(".") > -1) {
              _Ref = ods_to_csf_3D(atag.Target.slice(1));
              atag.Target = "#" + _Ref[0] + "!" + _Ref[1];
            }
          }
          break;

        /* non-standard */
        case 'table-protection': break;
        case 'data-pilot-grand-total': break; // <table:
        case 'office-document-common-attrs': break; // bare
        default: switch(Rn[2]) {
          case 'dc:':       // TODO: properties
          case 'calcext:':  // ignore undocumented extensions
          case 'loext:':    // ignore undocumented extensions
          case 'ooo:':      // ignore undocumented extensions
          case 'chartooo:': // ignore undocumented extensions
          case 'draw:':     // TODO: drawing
          case 'style:':    // TODO: styles
          case 'chart:':    // TODO: charts
          case 'form:':     // TODO: forms
          case 'uof:':      // TODO: uof
          case '表:':       // TODO: uof
          case '字:':       // TODO: uof
            break;
          default: if(opts.WTF) throw new Error(Rn);
        }
      }
      var out = ({
        Sheets: Sheets,
        SheetNames: SheetNames,
        Workbook: WB
      });
      if(opts.bookSheets) delete out.Sheets;
      return out;
    };
  })();

  function parse_ods(zip, opts) {
    opts = opts || ({});
    var ods = !!safegetzipfile(zip, 'objectdata');
    if(ods) parse_manifest(getzipdata(zip, 'META-INF/manifest.xml'), opts);
    var content = getzipstr(zip, 'content.xml');
    if(!content) throw new Error("Missing content.xml in " + (ods ? "ODS" : "UOF")+ " file");
    var wb = parse_content_xml(ods ? content : utf8read(content), opts);
    if(safegetzipfile(zip, 'meta.xml')) wb.Props = parse_core_props(getzipdata(zip, 'meta.xml'));
    return wb;
  }
  function parse_fods(data, opts) {
    return parse_content_xml(data, opts);
  }

  /* OpenDocument */
  var write_styles_ods = (function() {
    var payload = '<office:document-styles ' + wxt_helper({
      'xmlns:office':   "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
      'xmlns:table':    "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
      'xmlns:style':    "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
      'xmlns:text':     "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
      'xmlns:draw':     "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
      'xmlns:fo':       "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
      'xmlns:xlink':    "http://www.w3.org/1999/xlink",
      'xmlns:dc':       "http://purl.org/dc/elements/1.1/",
      'xmlns:number':   "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
      'xmlns:svg':      "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
      'xmlns:of':       "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
      'office:version': "1.2"
    }) + '></office:document-styles>';
    return function wso() {
      return XML_HEADER + payload;
    };
  })();
  var write_content_ods = (function() {
    /* 6.1.2 White Space Characters */
    var write_text_p = function(text) {
      return escapexml(text)
        .replace(/  +/g, function($$){return '<text:s text:c="'+$$.length+'"/>';})
        .replace(/\t/g, "<text:tab/>")
        .replace(/\n/g, "<text:line-break/>")
        .replace(/^ /, "<text:s/>").replace(/ $/, "<text:s/>");
    };

    var null_cell_xml = '          <table:table-cell />\n';
    var covered_cell_xml = '          <table:covered-table-cell/>\n';
    var write_ws = function(ws, wb, i) {
      /* Section 9 Tables */
      var o = [];
      o.push('      <table:table table:name="' + escapexml(wb.SheetNames[i]) + '">\n');
      var R=0,C=0, range = decode_range(ws['!ref']);
      var marr = ws['!merges'] || [], mi = 0;
      var dense = Array.isArray(ws);
      for(R = 0; R < range.s.r; ++R) o.push('        <table:table-row></table:table-row>\n');
      for(; R <= range.e.r; ++R) {
        o.push('        <table:table-row>\n');
        for(C=0; C < range.s.c; ++C) o.push(null_cell_xml);
        for(; C <= range.e.c; ++C) {
          var skip = false, ct = {}, textp = "";
          for(mi = 0; mi != marr.length; ++mi) {
            if(marr[mi].s.c > C) continue;
            if(marr[mi].s.r > R) continue;
            if(marr[mi].e.c < C) continue;
            if(marr[mi].e.r < R) continue;
            if(marr[mi].s.c != C || marr[mi].s.r != R) skip = true;
            ct['table:number-columns-spanned'] = (marr[mi].e.c - marr[mi].s.c + 1);
            ct['table:number-rows-spanned'] =    (marr[mi].e.r - marr[mi].s.r + 1);
            break;
          }
          if(skip) { o.push(covered_cell_xml); continue; }
          var ref = encode_cell({r:R, c:C}), cell = dense ? (ws[R]||[])[C]: ws[ref];
          if(cell && cell.f) {
            ct['table:formula'] = escapexml(csf_to_ods_formula(cell.f));
            if(cell.F) {
              if(cell.F.slice(0, ref.length) == ref) {
                var _Fref = decode_range(cell.F);
                ct['table:number-matrix-columns-spanned'] = (_Fref.e.c - _Fref.s.c + 1);
                ct['table:number-matrix-rows-spanned'] =    (_Fref.e.r - _Fref.s.r + 1);
              }
            }
          }
          if(!cell) { o.push(null_cell_xml); continue; }
          switch(cell.t) {
            case 'b':
              textp = (cell.v ? 'TRUE' : 'FALSE');
              ct['office:value-type'] = "boolean";
              ct['office:boolean-value'] = (cell.v ? 'true' : 'false');
              break;
            case 'n':
              textp = (cell.w||String(cell.v||0));
              ct['office:value-type'] = "float";
              ct['office:value'] = (cell.v||0);
              break;
            case 's': case 'str':
              textp = cell.v;
              ct['office:value-type'] = "string";
              break;
            case 'd':
              textp = (cell.w||(parseDate(cell.v).toISOString()));
              ct['office:value-type'] = "date";
              ct['office:date-value'] = (parseDate(cell.v).toISOString());
              ct['table:style-name'] = "ce1";
              break;
            //case 'e':
            default: o.push(null_cell_xml); continue;
          }
          var text_p = write_text_p(textp);
          if(cell.l && cell.l.Target) {
            var _tgt = cell.l.Target; _tgt = _tgt.charAt(0) == "#" ? "#" + csf_to_ods_3D(_tgt.slice(1)) : _tgt;
            text_p = writextag('text:a', text_p, {'xlink:href': _tgt});
          }
          o.push('          ' + writextag('table:table-cell', writextag('text:p', text_p, {}), ct) + '\n');
        }
        o.push('        </table:table-row>\n');
      }
      o.push('      </table:table>\n');
      return o.join("");
    };

    var write_automatic_styles_ods = function(o) {
      o.push(' <office:automatic-styles>\n');
      o.push('  <number:date-style style:name="N37" number:automatic-order="true">\n');
      o.push('   <number:month number:style="long"/>\n');
      o.push('   <number:text>/</number:text>\n');
      o.push('   <number:day number:style="long"/>\n');
      o.push('   <number:text>/</number:text>\n');
      o.push('   <number:year/>\n');
      o.push('  </number:date-style>\n');
      o.push('  <style:style style:name="ce1" style:family="table-cell" style:parent-style-name="Default" style:data-style-name="N37"/>\n');
      o.push(' </office:automatic-styles>\n');
    };

    return function wcx(wb, opts) {
      var o = [XML_HEADER];
      /* 3.1.3.2 */
      var attr = wxt_helper({
        'xmlns:office':       "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
        'xmlns:table':        "urn:oasis:names:tc:opendocument:xmlns:table:1.0",
        'xmlns:style':        "urn:oasis:names:tc:opendocument:xmlns:style:1.0",
        'xmlns:text':         "urn:oasis:names:tc:opendocument:xmlns:text:1.0",
        'xmlns:draw':         "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
        'xmlns:fo':           "urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0",
        'xmlns:xlink':        "http://www.w3.org/1999/xlink",
        'xmlns:dc':           "http://purl.org/dc/elements/1.1/",
        'xmlns:meta':         "urn:oasis:names:tc:opendocument:xmlns:meta:1.0",
        'xmlns:number':       "urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0",
        'xmlns:presentation': "urn:oasis:names:tc:opendocument:xmlns:presentation:1.0",
        'xmlns:svg':          "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0",
        'xmlns:chart':        "urn:oasis:names:tc:opendocument:xmlns:chart:1.0",
        'xmlns:dr3d':         "urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0",
        'xmlns:math':         "http://www.w3.org/1998/Math/MathML",
        'xmlns:form':         "urn:oasis:names:tc:opendocument:xmlns:form:1.0",
        'xmlns:script':       "urn:oasis:names:tc:opendocument:xmlns:script:1.0",
        'xmlns:ooo':          "http://openoffice.org/2004/office",
        'xmlns:ooow':         "http://openoffice.org/2004/writer",
        'xmlns:oooc':         "http://openoffice.org/2004/calc",
        'xmlns:dom':          "http://www.w3.org/2001/xml-events",
        'xmlns:xforms':       "http://www.w3.org/2002/xforms",
        'xmlns:xsd':          "http://www.w3.org/2001/XMLSchema",
        'xmlns:xsi':          "http://www.w3.org/2001/XMLSchema-instance",
        'xmlns:sheet':        "urn:oasis:names:tc:opendocument:sh33tjs:1.0",
        'xmlns:rpt':          "http://openoffice.org/2005/report",
        'xmlns:of':           "urn:oasis:names:tc:opendocument:xmlns:of:1.2",
        'xmlns:xhtml':        "http://www.w3.org/1999/xhtml",
        'xmlns:grddl':        "http://www.w3.org/2003/g/data-view#",
        'xmlns:tableooo':     "http://openoffice.org/2009/table",
        'xmlns:drawooo':      "http://openoffice.org/2010/draw",
        'xmlns:calcext':      "urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0",
        'xmlns:loext':        "urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0",
        'xmlns:field':        "urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0",
        'xmlns:formx':        "urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0",
        'xmlns:css3t':        "http://www.w3.org/TR/css3-text/",
        'office:version':     "1.2"
      });

      var fods = wxt_helper({
        'xmlns:config':    "urn:oasis:names:tc:opendocument:xmlns:config:1.0",
        'office:mimetype': "application/vnd.oasis.opendocument.spreadsheet"
      });

      if(opts.bookType == "fods") o.push('<office:document' + attr + fods + '>\n');
      else o.push('<office:document-content' + attr  + '>\n');
      write_automatic_styles_ods(o);
      o.push('  <office:body>\n');
      o.push('    <office:spreadsheet>\n');
      for(var i = 0; i != wb.SheetNames.length; ++i) o.push(write_ws(wb.Sheets[wb.SheetNames[i]], wb, i, opts));
      o.push('    </office:spreadsheet>\n');
      o.push('  </office:body>\n');
      if(opts.bookType == "fods") o.push('</office:document>');
      else o.push('</office:document-content>');
      return o.join("");
    };
  })();

  function write_ods(wb, opts) {
    if(opts.bookType == "fods") return write_content_ods(wb, opts);

    var zip = new jszip();
    var f = "";

    var manifest = [];
    var rdf = [];

    /* Part 3 Section 3.3 MIME Media Type */
    f = "mimetype";
    zip.file(f, "application/vnd.oasis.opendocument.spreadsheet");

    /* Part 1 Section 2.2 Documents */
    f = "content.xml";
    zip.file(f, write_content_ods(wb, opts));
    manifest.push([f, "text/xml"]);
    rdf.push([f, "ContentFile"]);

    /* TODO: these are hard-coded styles to satiate excel */
    f = "styles.xml";
    zip.file(f, write_styles_ods(wb, opts));
    manifest.push([f, "text/xml"]);
    rdf.push([f, "StylesFile"]);

    /* TODO: this is hard-coded to satiate excel */
    f = "meta.xml";
    zip.file(f, write_meta_ods());
    manifest.push([f, "text/xml"]);
    rdf.push([f, "MetadataFile"]);

    /* Part 3 Section 6 Metadata Manifest File */
    f = "manifest.rdf";
    zip.file(f, write_rdf(rdf/*, opts*/));
    manifest.push([f, "application/rdf+xml"]);

    /* Part 3 Section 4 Manifest File */
    f = "META-INF/manifest.xml";
    zip.file(f, write_manifest(manifest/*, opts*/));

    return zip;
  }

  function write_sheet_index(wb, sheet) {
    if(!sheet) return 0;
    var idx = wb.SheetNames.indexOf(sheet);
    if(idx == -1) throw new Error("Sheet not found: " + sheet);
    return idx;
  }

  function write_obj_str(factory) {
    return function write_str(wb, o) {
      var idx = write_sheet_index(wb, o.sheet);
      return factory.from_sheet(wb.Sheets[wb.SheetNames[idx]], o, wb);
    };
  }

  var write_htm_str = write_obj_str(HTML_);
  var write_csv_str = write_obj_str({from_sheet:sheet_to_csv});
  var write_slk_str = write_obj_str(SYLK);
  var write_dif_str = write_obj_str(DIF);
  var write_prn_str = write_obj_str(PRN);
  var write_rtf_str = write_obj_str(RTF);
  var write_txt_str = write_obj_str({from_sheet:sheet_to_txt});
  var write_dbf_buf = write_obj_str(DBF);
  var write_eth_str = write_obj_str(ETH);

  function fix_opts_func(defaults) {
    return function fix_opts(opts) {
      for(var i = 0; i != defaults.length; ++i) {
        var d = defaults[i];
        if(opts[d[0]] === undefined) opts[d[0]] = d[1];
        if(d[2] === 'n') opts[d[0]] = Number(opts[d[0]]);
      }
    };
  }

  var fix_read_opts = fix_opts_func([
    ['cellNF', false], /* emit cell number format string as .z */
    ['cellHTML', true], /* emit html string as .h */
    ['cellFormula', true], /* emit formulae as .f */
    ['cellStyles', false], /* emits style/theme as .s */
    ['cellText', true], /* emit formatted text as .w */
    ['cellDates', false], /* emit date cells with type `d` */

    ['sheetStubs', false], /* emit empty cells */
    ['sheetRows', 0, 'n'], /* read n rows (0 = read all rows) */

    ['bookDeps', false], /* parse calculation chains */
    ['bookSheets', false], /* only try to get sheet names (no Sheets) */
    ['bookProps', false], /* only try to get properties (no Sheets) */
    ['bookFiles', false], /* include raw file structure (keys, files, cfb) */
    ['bookVBA', false], /* include vba raw data (vbaraw) */

    ['password',''], /* password */
    ['WTF', false] /* WTF mode (throws errors) */
  ]);


  var fix_write_opts = fix_opts_func([
    ['cellDates', false], /* write date cells with type `d` */

    ['bookSST', false], /* Generate Shared String Table */

    ['bookType', 'xlsx'], /* Type of workbook (xlsx/m/b) */

    ['compression', false], /* Use file compression */

    ['WTF', false] /* WTF mode (throws errors) */
  ]);
  function get_sheet_type(n) {
    if(RELS.WS.indexOf(n) > -1) return "sheet";
    if(RELS.CS && n == RELS.CS) return "chart";
    if(RELS.DS && n == RELS.DS) return "dialog";
    if(RELS.MS && n == RELS.MS) return "macro";
    return (n && n.length) ? n : "sheet";
  }
  function safe_parse_wbrels(wbrels, sheets) {
    if(!wbrels) return 0;
    try {
      wbrels = sheets.map(function pwbr(w) { if(!w.id) w.id = w.strRelID; return [w.name, wbrels['!id'][w.id].Target, get_sheet_type(wbrels['!id'][w.id].Type)]; });
    } catch(e) { return null; }
    return !wbrels || wbrels.length === 0 ? null : wbrels;
  }

  function safe_parse_sheet(zip, path, relsPath, sheet, idx, sheetRels, sheets, stype, opts, wb, themes, styles) {
    try {
      sheetRels[sheet]=parse_rels(getzipstr(zip, relsPath, true), path);
      var data = getzipdata(zip, path);
      var _ws;
      switch(stype) {
        case 'sheet':  _ws = parse_ws(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
        case 'chart':  _ws = parse_cs(data, path, idx, opts, sheetRels[sheet], wb, themes, styles);
          if(!_ws || !_ws['!chart']) break;
          var dfile = resolve_path(_ws['!chart'].Target, path);
          var drelsp = get_rels_path(dfile);
          var draw = parse_drawing(getzipstr(zip, dfile, true), parse_rels(getzipstr(zip, drelsp, true), dfile));
          var chartp = resolve_path(draw, dfile);
          var crelsp = get_rels_path(chartp);
          _ws = parse_chart(getzipstr(zip, chartp, true), chartp, opts, parse_rels(getzipstr(zip, crelsp, true), chartp), wb, _ws);
          break;
        case 'macro':  _ws = parse_ms(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
        case 'dialog': _ws = parse_ds(data, path, idx, opts, sheetRels[sheet], wb, themes, styles); break;
      }
      sheets[sheet] = _ws;
    } catch(e) { if(opts.WTF) throw e; }
  }

  function strip_front_slash(x) { return x.charAt(0) == '/' ? x.slice(1) : x; }

  function parse_zip(zip, opts) {
    make_ssf(SSF);
    opts = opts || {};
    fix_read_opts(opts);

    /* OpenDocument Part 3 Section 2.2.1 OpenDocument Package */
    if(safegetzipfile(zip, 'META-INF/manifest.xml')) return parse_ods(zip, opts);
    /* UOC */
    if(safegetzipfile(zip, 'objectdata.xml')) return parse_ods(zip, opts);
    /* Numbers */
    if(safegetzipfile(zip, 'Index/Document.iwa')) throw new Error('Unsupported NUMBERS file');

    var entries = zipentries(zip);
    var dir = parse_ct((getzipstr(zip, '[Content_Types].xml')));
    var xlsb = false;
    var sheets, binname;
    if(dir.workbooks.length === 0) {
      binname = "xl/workbook.xml";
      if(getzipdata(zip,binname, true)) dir.workbooks.push(binname);
    }
    if(dir.workbooks.length === 0) {
      binname = "xl/workbook.bin";
      if(!getzipdata(zip,binname,true)) throw new Error("Could not find workbook");
      dir.workbooks.push(binname);
      xlsb = true;
    }
    if(dir.workbooks[0].slice(-3) == "bin") xlsb = true;

    var themes = ({});
    var styles = ({});
    if(!opts.bookSheets && !opts.bookProps) {
      strs = [];
      if(dir.sst) try { strs=parse_sst(getzipdata(zip, strip_front_slash(dir.sst)), dir.sst, opts); } catch(e) { if(opts.WTF) throw e; }

      if(opts.cellStyles && dir.themes.length) themes = parse_theme(getzipstr(zip, dir.themes[0].replace(/^\//,''), true)||"",dir.themes[0], opts);

      if(dir.style) styles = parse_sty(getzipdata(zip, strip_front_slash(dir.style)), dir.style, themes, opts);
    }

    /*var externbooks = */dir.links.map(function(link) {
      return parse_xlink(getzipdata(zip, strip_front_slash(link)), link, opts);
    });

    var wb = parse_wb(getzipdata(zip, strip_front_slash(dir.workbooks[0])), dir.workbooks[0], opts);

    var props = {}, propdata = "";

    if(dir.coreprops.length) {
      propdata = getzipdata(zip, strip_front_slash(dir.coreprops[0]), true);
      if(propdata) props = parse_core_props(propdata);
      if(dir.extprops.length !== 0) {
        propdata = getzipdata(zip, strip_front_slash(dir.extprops[0]), true);
        if(propdata) parse_ext_props(propdata, props, opts);
      }
    }

    var custprops = {};
    if(!opts.bookSheets || opts.bookProps) {
      if (dir.custprops.length !== 0) {
        propdata = getzipstr(zip, strip_front_slash(dir.custprops[0]), true);
        if(propdata) custprops = parse_cust_props(propdata, opts);
      }
    }

    var out = ({});
    if(opts.bookSheets || opts.bookProps) {
      if(wb.Sheets) sheets = wb.Sheets.map(function pluck(x){ return x.name; });
      else if(props.Worksheets && props.SheetNames.length > 0) sheets=props.SheetNames;
      if(opts.bookProps) { out.Props = props; out.Custprops = custprops; }
      if(opts.bookSheets && typeof sheets !== 'undefined') out.SheetNames = sheets;
      if(opts.bookSheets ? out.SheetNames : opts.bookProps) return out;
    }
    sheets = {};

    var deps = {};
    if(opts.bookDeps && dir.calcchain) deps=parse_cc(getzipdata(zip, strip_front_slash(dir.calcchain)),dir.calcchain,opts);

    var i=0;
    var sheetRels = ({});
    var path, relsPath;

    {
      var wbsheets = wb.Sheets;
      props.Worksheets = wbsheets.length;
      props.SheetNames = [];
      for(var j = 0; j != wbsheets.length; ++j) {
        props.SheetNames[j] = wbsheets[j].name;
      }
    }

    var wbext = xlsb ? "bin" : "xml";
    var wbrelsi = dir.workbooks[0].lastIndexOf("/");
    var wbrelsfile = (dir.workbooks[0].slice(0, wbrelsi+1) + "_rels/" + dir.workbooks[0].slice(wbrelsi+1) + ".rels").replace(/^\//,"");
    if(!safegetzipfile(zip, wbrelsfile)) wbrelsfile = 'xl/_rels/workbook.' + wbext + '.rels';
    var wbrels = parse_rels(getzipstr(zip, wbrelsfile, true), wbrelsfile);
    if(wbrels) wbrels = safe_parse_wbrels(wbrels, wb.Sheets);

    /* Numbers iOS hack */
    var nmode = (getzipdata(zip,"xl/worksheets/sheet.xml",true))?1:0;
    for(i = 0; i != props.Worksheets; ++i) {
      var stype = "sheet";
      if(wbrels && wbrels[i]) {
        path = 'xl/' + (wbrels[i][1]).replace(/[\/]?xl\//, "");
        if(!safegetzipfile(zip, path)) path = wbrels[i][1];
        if(!safegetzipfile(zip, path)) path = wbrelsfile.replace(/_rels\/.*$/,"") + wbrels[i][1];
        stype = wbrels[i][2];
      } else {
        path = 'xl/worksheets/sheet'+(i+1-nmode)+"." + wbext;
        path = path.replace(/sheet0\./,"sheet.");
      }
      relsPath = path.replace(/^(.*)(\/)([^\/]*)$/, "$1/_rels/$3.rels");
      safe_parse_sheet(zip, path, relsPath, props.SheetNames[i], i, sheetRels, sheets, stype, opts, wb, themes, styles);
    }

    if(dir.comments) parse_comments(zip, dir.comments, sheets, sheetRels, opts);

    out = ({
      Directory: dir,
      Workbook: wb,
      Props: props,
      Custprops: custprops,
      Deps: deps,
      Sheets: sheets,
      SheetNames: props.SheetNames,
      Strings: strs,
      Styles: styles,
      Themes: themes,
      SSF: SSF.get_table()
    });
    if(opts.bookFiles) {
      out.keys = entries;
      out.files = zip.files;
    }
    if(opts.bookVBA) {
      if(dir.vba.length > 0) out.vbaraw = getzipdata(zip,strip_front_slash(dir.vba[0]),true);
      else if(dir.defaults && dir.defaults.bin === CT_VBA) out.vbaraw = getzipdata(zip, 'xl/vbaProject.bin',true);
    }
    return out;
  }

  /* [MS-OFFCRYPTO] 2.1.1 */
  function parse_xlsxcfb(cfb, _opts) {
    var opts = _opts || {};
    var f = 'Workbook', data = CFB.find(cfb, f);
    try {
      f = '/!DataSpaces/Version';
      data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
      /*var version = */parse_DataSpaceVersionInfo(data.content);

      /* 2.3.4.1 */
      f = '/!DataSpaces/DataSpaceMap';
      data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
      var dsm = parse_DataSpaceMap(data.content);
      if(dsm.length !== 1 || dsm[0].comps.length !== 1 || dsm[0].comps[0].t !== 0 || dsm[0].name !== "StrongEncryptionDataSpace" || dsm[0].comps[0].v !== "EncryptedPackage")
        throw new Error("ECMA-376 Encrypted file bad " + f);

      /* 2.3.4.2 */
      f = '/!DataSpaces/DataSpaceInfo/StrongEncryptionDataSpace';
      data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
      var seds = parse_DataSpaceDefinition(data.content);
      if(seds.length != 1 || seds[0] != "StrongEncryptionTransform")
        throw new Error("ECMA-376 Encrypted file bad " + f);

      /* 2.3.4.3 */
      f = '/!DataSpaces/TransformInfo/StrongEncryptionTransform/!Primary';
      data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
      /*var hdr = */parse_Primary(data.content);
    } catch(e) {}

    f = '/EncryptionInfo';
    data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);
    var einfo = parse_EncryptionInfo(data.content);

    /* 2.3.4.4 */
    f = '/EncryptedPackage';
    data = CFB.find(cfb, f); if(!data || !data.content) throw new Error("ECMA-376 Encrypted file missing " + f);

    /*global decrypt_agile */
    if(einfo[0] == 0x04 && typeof decrypt_agile !== 'undefined') return decrypt_agile(einfo[1], data.content, opts.password || "", opts);
    /*global decrypt_std76 */
    if(einfo[0] == 0x02 && typeof decrypt_std76 !== 'undefined') return decrypt_std76(einfo[1], data.content, opts.password || "", opts);
    throw new Error("File is password-protected");
  }

  function write_zip(wb, opts) {
    _shapeid = 1024;
    if(opts.bookType == "ods") return write_ods(wb, opts);
    if(wb && !wb.SSF) {
      wb.SSF = SSF.get_table();
    }
    if(wb && wb.SSF) {
      make_ssf(SSF); SSF.load_table(wb.SSF);
      // $FlowIgnore
      opts.revssf = evert_num(wb.SSF); opts.revssf[wb.SSF[65535]] = 0;
      opts.ssf = wb.SSF;
    }
    opts.rels = {}; opts.wbrels = {};
    opts.Strings = []; opts.Strings.Count = 0; opts.Strings.Unique = 0;
    if(browser_has_Map) opts.revStrings = new Map();
    else { opts.revStrings = {}; opts.revStrings.foo = []; delete opts.revStrings.foo; }
    var wbext = opts.bookType == "xlsb" ? "bin" : "xml";
    var vbafmt = VBAFMTS.indexOf(opts.bookType) > -1;
    var ct = new_ct();
    fix_write_opts(opts = opts || {});
    var zip = new jszip();
    var f = "", rId = 0;

    opts.cellXfs = [];
    get_cell_style(opts.cellXfs, {}, {revssf:{"General":0}});

    if(!wb.Props) wb.Props = {};

    f = "docProps/core.xml";
    zip.file(f, write_core_props(wb.Props, opts));
    ct.coreprops.push(f);
    add_rels(opts.rels, 2, f, RELS.CORE_PROPS);

    f = "docProps/app.xml";
    if(wb.Props && wb.Props.SheetNames){/* empty */}
    else if(!wb.Workbook || !wb.Workbook.Sheets) wb.Props.SheetNames = wb.SheetNames;
    else {
      var _sn = [];
      for(var _i = 0; _i < wb.SheetNames.length; ++_i)
        if((wb.Workbook.Sheets[_i]||{}).Hidden != 2) _sn.push(wb.SheetNames[_i]);
      wb.Props.SheetNames = _sn;
    }
    wb.Props.Worksheets = wb.Props.SheetNames.length;
    zip.file(f, write_ext_props(wb.Props, opts));
    ct.extprops.push(f);
    add_rels(opts.rels, 3, f, RELS.EXT_PROPS);

    if(wb.Custprops !== wb.Props && keys(wb.Custprops||{}).length > 0) {
      f = "docProps/custom.xml";
      zip.file(f, write_cust_props(wb.Custprops, opts));
      ct.custprops.push(f);
      add_rels(opts.rels, 4, f, RELS.CUST_PROPS);
    }

    for(rId=1;rId <= wb.SheetNames.length; ++rId) {
      var wsrels = {'!id':{}};
      var ws = wb.Sheets[wb.SheetNames[rId-1]];
      var _type = (ws || {})["!type"] || "sheet";
      switch(_type) {
        case "chart": /*
			f = "xl/chartsheets/sheet" + rId + "." + wbext;
			zip.file(f, write_cs(rId-1, f, opts, wb, wsrels));
			ct.charts.push(f);
			add_rels(wsrels, -1, "chartsheets/sheet" + rId + "." + wbext, RELS.CS);
			break; */
        /* falls through */
        default:
          f = "xl/worksheets/sheet" + rId + "." + wbext;
          zip.file(f, write_ws(rId-1, f, opts, wb, wsrels));
          ct.sheets.push(f);
          add_rels(opts.wbrels, -1, "worksheets/sheet" + rId + "." + wbext, RELS.WS[0]);
      }

      if(ws) {
        var comments = ws['!comments'];
        var need_vml = false;
        if(comments && comments.length > 0) {
          var cf = "xl/comments" + rId + "." + wbext;
          zip.file(cf, write_cmnt(comments, cf, opts));
          ct.comments.push(cf);
          add_rels(wsrels, -1, "../comments" + rId + "." + wbext, RELS.CMNT);
          need_vml = true;
        }
        if(ws['!legacy']) {
          if(need_vml) zip.file("xl/drawings/vmlDrawing" + (rId) + ".vml", write_comments_vml(rId, ws['!comments']));
        }
        delete ws['!comments'];
        delete ws['!legacy'];
      }

      if(wsrels['!id'].rId1) zip.file(get_rels_path(f), write_rels(wsrels));
    }

    if(opts.Strings != null && opts.Strings.length > 0) {
      f = "xl/sharedStrings." + wbext;
      zip.file(f, write_sst(opts.Strings, f, opts));
      ct.strs.push(f);
      add_rels(opts.wbrels, -1, "sharedStrings." + wbext, RELS.SST);
    }

    f = "xl/workbook." + wbext;
    zip.file(f, write_wb(wb, f, opts));
    ct.workbooks.push(f);
    add_rels(opts.rels, 1, f, RELS.WB);

    /* TODO: something more intelligent with themes */

    f = "xl/theme/theme1.xml";
    zip.file(f, write_theme(wb.Themes, opts));
    ct.themes.push(f);
    add_rels(opts.wbrels, -1, "theme/theme1.xml", RELS.THEME);

    /* TODO: something more intelligent with styles */

    f = "xl/styles." + wbext;
    zip.file(f, write_sty(wb, f, opts));
    ct.styles.push(f);
    add_rels(opts.wbrels, -1, "styles." + wbext, RELS.STY);

    if(wb.vbaraw && vbafmt) {
      f = "xl/vbaProject.bin";
      zip.file(f, wb.vbaraw);
      ct.vba.push(f);
      add_rels(opts.wbrels, -1, "vbaProject.bin", RELS.VBA);
    }

    zip.file("[Content_Types].xml", write_ct(ct, opts));
    zip.file('_rels/.rels', write_rels(opts.rels));
    zip.file('xl/_rels/workbook.' + wbext + '.rels', write_rels(opts.wbrels));

    delete opts.revssf; delete opts.ssf;
    return zip;
  }
  function firstbyte(f,o) {
    var x = "";
    switch((o||{}).type || "base64") {
      case 'buffer': return [f[0], f[1], f[2], f[3]];
      case 'base64': x = Base64.decode(f.slice(0,24)); break;
      case 'binary': x = f; break;
      case 'array':  return [f[0], f[1], f[2], f[3]];
      default: throw new Error("Unrecognized type " + (o && o.type || "undefined"));
    }
    return [x.charCodeAt(0), x.charCodeAt(1), x.charCodeAt(2), x.charCodeAt(3)];
  }

  function read_cfb(cfb, opts) {
    if(CFB.find(cfb, "EncryptedPackage")) return parse_xlsxcfb(cfb, opts);
    return parse_xlscfb(cfb, opts);
  }

  function read_zip(data, opts) {
    var zip, d = data;
    var o = opts||{};
    if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
    switch(o.type) {
      case "base64": zip = new jszip(d, { base64:true }); break;
      case "binary": case "array": zip = new jszip(d, { base64:false }); break;
      case "buffer": zip = new jszip(d); break;
      default: throw new Error("Unrecognized type " + o.type);
    }
    return parse_zip(zip, o);
  }

  function read_plaintext(data, o) {
    var i = 0;
    main: while(i < data.length) switch(data.charCodeAt(i)) {
      case 0x0A: case 0x0D: case 0x20: ++i; break;
      case 0x3C: return parse_xlml(data.slice(i),o);
      default: break main;
    }
    return PRN.to_workbook(data, o);
  }

  function read_plaintext_raw(data, o) {
    var str = "", bytes = firstbyte(data, o);
    switch(o.type) {
      case 'base64': str = Base64.decode(data); break;
      case 'binary': str = data; break;
      case 'buffer': str = data.toString('binary'); break;
      case 'array': str = cc2str(data); break;
      default: throw new Error("Unrecognized type " + o.type);
    }
    if(bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) str = utf8read(str);
    return read_plaintext(str, o);
  }

  function read_utf16(data, o) {
    var d = data;
    if(o.type == 'base64') d = Base64.decode(d);
    d = cptable.utils.decode(1200, d.slice(2), 'str');
    o.type = "binary";
    return read_plaintext(d, o);
  }

  function bstrify(data) {
    return !data.match(/[^\x00-\x7F]/) ? data : utf8write(data);
  }

  function read_prn(data, d, o, str) {
    if(str) { o.type = "string"; return PRN.to_workbook(data, o); }
    return PRN.to_workbook(d, o);
  }

  function readSync(data, opts) {
    reset_cp();
    if(typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) return readSync(new Uint8Array(data), opts);
    var d = data, n = [0,0,0,0], str = false;
    var o = opts||{};
    _ssfopts = {};
    if(o.dateNF) _ssfopts.dateNF = o.dateNF;
    if(!o.type) o.type = (has_buf && Buffer.isBuffer(data)) ? "buffer" : "base64";
    if(o.type == "file") { o.type = has_buf ? "buffer" : "binary"; d = read_binary(data); }
    if(o.type == "string") { str = true; o.type = "binary"; o.codepage = 65001; d = bstrify(data); }
    if(o.type == 'array' && typeof Uint8Array !== 'undefined' && data instanceof Uint8Array && typeof ArrayBuffer !== 'undefined') {
      // $FlowIgnore
      var ab=new ArrayBuffer(3), vu=new Uint8Array(ab); vu.foo="bar";
      // $FlowIgnore
      if(!vu.foo) {o=dup(o); o.type='array'; return readSync(ab2a(d), o);}
    }
    switch((n = firstbyte(d, o))[0]) {
      case 0xD0: return read_cfb(CFB.read(d, o), o);
      case 0x09: return parse_xlscfb(d, o);
      case 0x3C: return parse_xlml(d, o);
      case 0x49: if(n[1] === 0x44) return read_wb_ID(d, o); break;
      case 0x54: if(n[1] === 0x41 && n[2] === 0x42 && n[3] === 0x4C) return DIF.to_workbook(d, o); break;
      case 0x50: return (n[1] === 0x4B && n[2] < 0x09 && n[3] < 0x09) ? read_zip(d, o) : read_prn(data, d, o, str);
      case 0xEF: return n[3] === 0x3C ? parse_xlml(d, o) : read_prn(data, d, o, str);
      case 0xFF: if(n[1] === 0xFE) { return read_utf16(d, o); } break;
      case 0x00: if(n[1] === 0x00 && n[2] >= 0x02 && n[3] === 0x00) return WK_.to_workbook(d, o); break;
      case 0x03: case 0x83: case 0x8B: case 0x8C: return DBF.to_workbook(d, o);
      case 0x7B: if(n[1] === 0x5C && n[2] === 0x72 && n[3] === 0x74) return RTF.to_workbook(d, o); break;
      case 0x0A: case 0x0D: case 0x20: return read_plaintext_raw(d, o);
    }
    if(n[2] <= 12 && n[3] <= 31) return DBF.to_workbook(d, o);
    return read_prn(data, d, o, str);
  }

  function readFileSync(filename, opts) {
    var o = opts||{}; o.type = 'file';
    return readSync(filename, o);
  }
  function write_cfb_ctr(cfb, o) {
    switch(o.type) {
      case "base64": case "binary": break;
      case "buffer": case "array": o.type = ""; break;
      case "file": return write_dl(o.file, CFB.write(cfb, {type:has_buf ? 'buffer' : ""}));
      case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
      default: throw new Error("Unrecognized type " + o.type);
    }
    return CFB.write(cfb, o);
  }

  /*global encrypt_agile */
  function write_zip_type(wb, opts) {
    var o = opts||{};
    var style_builder  = new StyleBuilder(opts);
    var z = write_zip(wb, o);
    var oopts = {};
    if(o.compression) oopts.compression = 'DEFLATE';
    if(o.password) oopts.type = has_buf ? "nodebuffer" : "string";
    else switch(o.type) {
      case "base64": oopts.type = "base64"; break;
      case "binary": oopts.type = "string"; break;
      case "string": throw new Error("'string' output type invalid for '" + o.bookType + "' files");
      case "buffer":
      case "file": oopts.type = has_buf ? "nodebuffer" : "string"; break;
      default: throw new Error("Unrecognized type " + o.type);
    }
    var out = z.generate(oopts);
    if(o.password && typeof encrypt_agile !== 'undefined') return write_cfb_ctr(encrypt_agile(out, o.password), o);
    if(o.type === "file") return write_dl(o.file, out);
    return o.type == "string" ? utf8read(out) : out;
  }

  function write_cfb_type(wb, opts) {
    var o = opts||{};
    var cfb = write_xlscfb(wb, o);
    return write_cfb_ctr(cfb, o);
  }

  function write_string_type(out, opts, bom) {
    if(!bom) bom = "";
    var o = bom + out;
    switch(opts.type) {
      case "base64": return Base64.encode(utf8write(o));
      case "binary": return utf8write(o);
      case "string": return out;
      case "file": return write_dl(opts.file, o, 'utf8');
      case "buffer": {
        // $FlowIgnore
        if(has_buf) return Buffer_from(o, 'utf8');
        else return write_string_type(o, {type:'binary'}).split("").map(function(c) { return c.charCodeAt(0); });
      }
    }
    throw new Error("Unrecognized type " + opts.type);
  }

  function write_stxt_type(out, opts) {
    switch(opts.type) {
      case "base64": return Base64.encode(out);
      case "binary": return out;
      case "string": return out; /* override in sheet_to_txt */
      case "file": return write_dl(opts.file, out, 'binary');
      case "buffer": {
        // $FlowIgnore
        if(has_buf) return Buffer_from(out, 'binary');
        else return out.split("").map(function(c) { return c.charCodeAt(0); });
      }
    }
    throw new Error("Unrecognized type " + opts.type);
  }

  /* TODO: test consistency */
  function write_binary_type(out, opts) {
    switch(opts.type) {
      case "string":
      case "base64":
      case "binary":
        var bstr = "";
        // $FlowIgnore
        for(var i = 0; i < out.length; ++i) bstr += String.fromCharCode(out[i]);
        return opts.type == 'base64' ? Base64.encode(bstr) : opts.type == 'string' ? utf8read(bstr) : bstr;
      case "file": return write_dl(opts.file, out);
      case "buffer": return out;
      default: throw new Error("Unrecognized type " + opts.type);
    }
  }

  function writeSync(wb, opts) {
    check_wb(wb);
    var o = opts||{};
    if(o.type == "array") { o.type = "binary"; var out = (writeSync(wb, o)); o.type = "array"; return s2ab(out); }
    switch(o.bookType || 'xlsb') {
      case 'xml':
      case 'xlml': return write_string_type(write_xlml(wb, o), o);
      case 'slk':
      case 'sylk': return write_string_type(write_slk_str(wb, o), o);
      case 'htm':
      case 'html': return write_string_type(write_htm_str(wb, o), o);
      case 'txt': return write_stxt_type(write_txt_str(wb, o), o);
      case 'csv': return write_string_type(write_csv_str(wb, o), o, "\ufeff");
      case 'dif': return write_string_type(write_dif_str(wb, o), o);
      case 'dbf': return write_binary_type(write_dbf_buf(wb, o), o);
      case 'prn': return write_string_type(write_prn_str(wb, o), o);
      case 'rtf': return write_string_type(write_rtf_str(wb, o), o);
      case 'eth': return write_string_type(write_eth_str(wb, o), o);
      case 'fods': return write_string_type(write_ods(wb, o), o);
      case 'biff2': if(!o.biff) o.biff = 2; /* falls through */
      case 'biff3': if(!o.biff) o.biff = 3; /* falls through */
      case 'biff4': if(!o.biff) o.biff = 4; return write_binary_type(write_biff_buf(wb, o), o);
      case 'biff5': if(!o.biff) o.biff = 5; /* falls through */
      case 'biff8':
      case 'xla':
      case 'xls': if(!o.biff) o.biff = 8; return write_cfb_type(wb, o);
      case 'xlsx':
      case 'xlsm':
      case 'xlam':
      case 'xlsb':
      case 'ods': return write_zip_type(wb, o);
      default: throw new Error ("Unrecognized bookType |" + o.bookType + "|");
    }
  }

  function resolve_book_type(o) {
    if(o.bookType) return;
    var _BT = {
      "xls": "biff8",
      "htm": "html",
      "slk": "sylk",
      "socialcalc": "eth",
      "Sh33tJS": "WTF"
    };
    var ext = o.file.slice(o.file.lastIndexOf(".")).toLowerCase();
    if(ext.match(/^\.[a-z]+$/)) o.bookType = ext.slice(1);
    o.bookType = _BT[o.bookType] || o.bookType;
  }

  function writeFileSync(wb, filename, opts) {
    var o = opts||{}; o.type = 'file';
    o.file = filename;
    resolve_book_type(o);
    return writeSync(wb, o);
  }

  function writeFileAsync(filename, wb, opts, cb) {
    var o = opts||{}; o.type = 'file';
    o.file = filename;
    resolve_book_type(o);
    o.type = 'buffer';
    var _cb = cb; if(!(_cb instanceof Function)) _cb = (opts);
    return _fs.writeFile(filename, writeSync(wb, o), _cb);
  }
  function make_json_row(sheet, r, R, cols, header, hdr, dense, o) {
    var rr = encode_row(R);
    var defval = o.defval, raw = o.raw || !o.hasOwnProperty("raw");
    var isempty = true;
    var row = (header === 1) ? [] : {};
    if(header !== 1) {
      if(Object.defineProperty) try { Object.defineProperty(row, '__rowNum__', {value:R, enumerable:false}); } catch(e) { row.__rowNum__ = R; }
      else row.__rowNum__ = R;
    }
    if(!dense || sheet[R]) for (var C = r.s.c; C <= r.e.c; ++C) {
      var val = dense ? sheet[R][C] : sheet[cols[C] + rr];
      if(val === undefined || val.t === undefined) {
        if(defval === undefined) continue;
        if(hdr[C] != null) { row[hdr[C]] = defval; }
        continue;
      }
      var v = val.v;
      switch(val.t){
        case 'z': if(v == null) break; continue;
        case 'e': v = void 0; break;
        case 's': case 'd': case 'b': case 'n': break;
        default: throw new Error('unrecognized type ' + val.t);
      }
      if(hdr[C] != null) {
        if(v == null) {
          if(defval !== undefined) row[hdr[C]] = defval;
          else if(raw && v === null) row[hdr[C]] = null;
          else continue;
        } else {
          row[hdr[C]] = raw ? v : format_cell(val,v,o);
        }
        if(v != null) isempty = false;
      }
    }
    return { row: row, isempty: isempty };
  }


  function sheet_to_json(sheet, opts) {
    if(sheet == null || sheet["!ref"] == null) return [];
    var val = {t:'n',v:0}, header = 0, offset = 1, hdr = [], v=0, vv="";
    var r = {s:{r:0,c:0},e:{r:0,c:0}};
    var o = opts || {};
    var range = o.range != null ? o.range : sheet["!ref"];
    if(o.header === 1) header = 1;
    else if(o.header === "A") header = 2;
    else if(Array.isArray(o.header)) header = 3;
    switch(typeof range) {
      case 'string': r = safe_decode_range(range); break;
      case 'number': r = safe_decode_range(sheet["!ref"]); r.s.r = range; break;
      default: r = range;
    }
    if(header > 0) offset = 0;
    var rr = encode_row(r.s.r);
    var cols = [];
    var out = [];
    var outi = 0, counter = 0;
    var dense = Array.isArray(sheet);
    var R = r.s.r, C = 0, CC = 0;
    if(dense && !sheet[R]) sheet[R] = [];
    for(C = r.s.c; C <= r.e.c; ++C) {
      cols[C] = encode_col(C);
      val = dense ? sheet[R][C] : sheet[cols[C] + rr];
      switch(header) {
        case 1: hdr[C] = C - r.s.c; break;
        case 2: hdr[C] = cols[C]; break;
        case 3: hdr[C] = o.header[C - r.s.c]; break;
        default:
          if(val == null) val = {w: "__EMPTY", t: "s"};
          vv = v = format_cell(val, null, o);
          counter = 0;
          for(CC = 0; CC < hdr.length; ++CC) if(hdr[CC] == vv) vv = v + "_" + (++counter);
          hdr[C] = vv;
      }
    }
    for (R = r.s.r + offset; R <= r.e.r; ++R) {
      var row = make_json_row(sheet, r, R, cols, header, hdr, dense, o);
      if((row.isempty === false) || (header === 1 ? o.blankrows !== false : !!o.blankrows)) out[outi++] = row.row;
    }
    out.length = outi;
    return out;
  }

  var qreg = /"/g;
  function make_csv_row(sheet, r, R, cols, fs, rs, FS, o) {
    var isempty = true;
    var row = [], txt = "", rr = encode_row(R);
    for(var C = r.s.c; C <= r.e.c; ++C) {
      if (!cols[C]) continue;
      var val = o.dense ? (sheet[R]||[])[C]: sheet[cols[C] + rr];
      if(val == null) txt = "";
      else if(val.v != null) {
        isempty = false;
        txt = ''+format_cell(val, null, o);
        for(var i = 0, cc = 0; i !== txt.length; ++i) if((cc = txt.charCodeAt(i)) === fs || cc === rs || cc === 34) {txt = "\"" + txt.replace(qreg, '""') + "\""; break; }
        if(txt == "ID") txt = '"ID"';
      } else if(val.f != null && !val.F) {
        isempty = false;
        txt = '=' + val.f; if(txt.indexOf(",") >= 0) txt = '"' + txt.replace(qreg, '""') + '"';
      } else txt = "";
      /* NOTE: Excel CSV does not support array formulae */
      row.push(txt);
    }
    if(o.blankrows === false && isempty) return null;
    return row.join(FS);
  }

  function sheet_to_csv(sheet, opts) {
    var out = [];
    var o = opts == null ? {} : opts;
    if(sheet == null || sheet["!ref"] == null) return "";
    var r = safe_decode_range(sheet["!ref"]);
    var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
    var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
    var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
    var row = "", cols = [];
    o.dense = Array.isArray(sheet);
    var colinfo = o.skipHidden && sheet["!cols"] || [];
    var rowinfo = o.skipHidden && sheet["!rows"] || [];
    for(var C = r.s.c; C <= r.e.c; ++C) if (!((colinfo[C]||{}).hidden)) cols[C] = encode_col(C);
    for(var R = r.s.r; R <= r.e.r; ++R) {
      if ((rowinfo[R]||{}).hidden) continue;
      row = make_csv_row(sheet, r, R, cols, fs, rs, FS, o);
      if(row == null) { continue; }
      if(o.strip) row = row.replace(endregex,"");
      out.push(row + RS);
    }
    delete o.dense;
    return out.join("");
  }

  function sheet_to_txt(sheet, opts) {
    if(!opts) opts = {}; opts.FS = "\t"; opts.RS = "\n";
    var s = sheet_to_csv(sheet, opts);
    if(typeof cptable == 'undefined' || opts.type == 'string') return s;
    var o = cptable.utils.encode(1200, s, 'str');
    return String.fromCharCode(255) + String.fromCharCode(254) + o;
  }

  function sheet_to_formulae(sheet) {
    var y = "", x, val="";
    if(sheet == null || sheet["!ref"] == null) return [];
    var r = safe_decode_range(sheet['!ref']), rr = "", cols = [], C;
    var cmds = [];
    var dense = Array.isArray(sheet);
    for(C = r.s.c; C <= r.e.c; ++C) cols[C] = encode_col(C);
    for(var R = r.s.r; R <= r.e.r; ++R) {
      rr = encode_row(R);
      for(C = r.s.c; C <= r.e.c; ++C) {
        y = cols[C] + rr;
        x = dense ? (sheet[R]||[])[C] : sheet[y];
        val = "";
        if(x === undefined) continue;
        else if(x.F != null) {
          y = x.F;
          if(!x.f) continue;
          val = x.f;
          if(y.indexOf(":") == -1) y = y + ":" + y;
        }
        if(x.f != null) val = x.f;
        else if(x.t == 'z') continue;
        else if(x.t == 'n' && x.v != null) val = "" + x.v;
        else if(x.t == 'b') val = x.v ? "TRUE" : "FALSE";
        else if(x.w !== undefined) val = "'" + x.w;
        else if(x.v === undefined) continue;
        else if(x.t == 's') val = "'" + x.v;
        else val = ""+x.v;
        cmds[cmds.length] = y + "=" + val;
      }
    }
    return cmds;
  }

  function sheet_add_json(_ws, js, opts) {
    var o = opts || {};
    var offset = +!o.skipHeader;
    var ws = _ws || ({});
    var _R = 0, _C = 0;
    if(ws && o.origin != null) {
      if(typeof o.origin == 'number') _R = o.origin;
      else {
        var _origin = typeof o.origin == "string" ? decode_cell(o.origin) : o.origin;
        _R = _origin.r; _C = _origin.c;
      }
    }
    var cell;
    var range = ({s: {c:0, r:0}, e: {c:_C, r:_R + js.length - 1 + offset}});
    if(ws['!ref']) {
      var _range = safe_decode_range(ws['!ref']);
      range.e.c = Math.max(range.e.c, _range.e.c);
      range.e.r = Math.max(range.e.r, _range.e.r);
      if(_R == -1) { _R = range.e.r + 1; range.e.r = _R + js.length - 1 + offset; }
    }
    var hdr = o.header || [], C = 0;

    js.forEach(function (JS, R) {
      keys(JS).forEach(function(k) {
        if((C=hdr.indexOf(k)) == -1) hdr[C=hdr.length] = k;
        var v = JS[k];
        var t = 'z';
        var z = "";
        if(v && typeof v === 'object' && !(v instanceof Date)){
          ws[encode_cell({c:_C + C,r:_R + R + offset})] = v;
        } else {
          if(typeof v == 'number') t = 'n';
          else if(typeof v == 'boolean') t = 'b';
          else if(typeof v == 'string') t = 's';
          else if(v instanceof Date) {
            t = 'd';
            if(!o.cellDates) { t = 'n'; v = datenum(v); }
            z = o.dateNF || SSF._table[14];
          }
          ws[encode_cell({c:_C + C,r:_R + R + offset})] = cell = ({t:t, v:v});
          if(z) cell.z = z;
        }
      });
    });
    range.e.c = Math.max(range.e.c, _C + hdr.length - 1);
    var __R = encode_row(_R);
    if(offset) for(C = 0; C < hdr.length; ++C) ws[encode_col(C + _C) + __R] = {t:'s', v:hdr[C]};
    ws['!ref'] = encode_range(range);
    return ws;
  }
  function json_to_sheet(js, opts) { return sheet_add_json(null, js, opts); }

  var utils = {
    encode_col: encode_col,
    encode_row: encode_row,
    encode_cell: encode_cell,
    encode_range: encode_range,
    decode_col: decode_col,
    decode_row: decode_row,
    split_cell: split_cell,
    decode_cell: decode_cell,
    decode_range: decode_range,
    format_cell: format_cell,
    get_formulae: sheet_to_formulae,
    make_csv: sheet_to_csv,
    make_json: sheet_to_json,
    make_formulae: sheet_to_formulae,
    sheet_add_aoa: sheet_add_aoa,
    sheet_add_json: sheet_add_json,
    aoa_to_sheet: aoa_to_sheet,
    json_to_sheet: json_to_sheet,
    table_to_sheet: parse_dom_table,
    table_to_book: table_to_book,
    sheet_to_csv: sheet_to_csv,
    sheet_to_txt: sheet_to_txt,
    sheet_to_json: sheet_to_json,
    sheet_to_html: HTML_.from_sheet,
    sheet_to_dif: DIF.from_sheet,
    sheet_to_slk: SYLK.from_sheet,
    sheet_to_eth: ETH.from_sheet,
    sheet_to_formulae: sheet_to_formulae,
    sheet_to_row_object_array: sheet_to_json
  };

  (function(utils) {
    utils.consts = utils.consts || {};
    function add_consts(R/*Array<any>*/) { R.forEach(function(a){ utils.consts[a[0]] = a[1]; }); }

    function get_default(x, y, z) { return x[y] != null ? x[y] : (x[y] = z); }

    /* get cell, creating a stub if necessary */
    function ws_get_cell_stub(ws, R, C) {
      /* A1 cell address */
      if(typeof R == "string") return ws[R] || (ws[R] = {t:'z'});
      /* cell address object */
      if(typeof R != "number") return ws_get_cell_stub(ws, encode_cell(R));
      /* R and C are 0-based indices */
      return ws_get_cell_stub(ws, encode_cell({r:R,c:C||0}));
    }

    /* find sheet index for given name / validate index */
    function wb_sheet_idx(wb, sh) {
      if(typeof sh == "number") {
        if(sh >= 0 && wb.SheetNames.length > sh) return sh;
        throw new Error("Cannot find sheet # " + sh);
      } else if(typeof sh == "string") {
        var idx = wb.SheetNames.indexOf(sh);
        if(idx > -1) return idx;
        throw new Error("Cannot find sheet name |" + sh + "|");
      } else throw new Error("Cannot find sheet |" + sh + "|");
    }

    /* simple blank workbook object */
    utils.book_new = function() {
      return { SheetNames: [], Sheets: {} };
    };

    /* add a worksheet to the end of a given workbook */
    utils.book_append_sheet = function(wb, ws, name) {
      if(!name) for(var i = 1; i <= 0xFFFF; ++i) if(wb.SheetNames.indexOf(name = "Sheet" + i) == -1) break;
      if(!name) throw new Error("Too many worksheets");
      check_ws_name(name);
      if(wb.SheetNames.indexOf(name) >= 0) throw new Error("Worksheet with name |" + name + "| already exists!");

      wb.SheetNames.push(name);
      wb.Sheets[name] = ws;
    };

    /* set sheet visibility (visible/hidden/very hidden) */
    utils.book_set_sheet_visibility = function(wb, sh, vis) {
      get_default(wb,"Workbook",{});
      get_default(wb.Workbook,"Sheets",[]);

      var idx = wb_sheet_idx(wb, sh);
      // $FlowIgnore
      get_default(wb.Workbook.Sheets,idx, {});

      switch(vis) {
        case 0: case 1: case 2: break;
        default: throw new Error("Bad sheet visibility setting " + vis);
      }
      // $FlowIgnore
      wb.Workbook.Sheets[idx].Hidden = vis;
    };
    add_consts([
      ["SHEET_VISIBLE", 0],
      ["SHEET_HIDDEN", 1],
      ["SHEET_VERY_HIDDEN", 2]
    ]);

    /* set number format */
    utils.cell_set_number_format = function(cell, fmt) {
      cell.z = fmt;
      return cell;
    };

    /* set cell hyperlink */
    utils.cell_set_hyperlink = function(cell, target, tooltip) {
      if(!target) {
        delete cell.l;
      } else {
        cell.l = ({ Target: target });
        if(tooltip) cell.l.Tooltip = tooltip;
      }
      return cell;
    };
    utils.cell_set_internal_link = function(cell, range, tooltip) { return utils.cell_set_hyperlink(cell, "#" + range, tooltip); };

    /* add to cell comments */
    utils.cell_add_comment = function(cell, text, author) {
      if(!cell.c) cell.c = [];
      cell.c.push({t:text, a:author||"SheetJS"});
    };

    /* set array formula and flush related cells */
    utils.sheet_set_array_formula = function(ws, range, formula) {
      var rng = typeof range != "string" ? range : safe_decode_range(range);
      var rngstr = typeof range == "string" ? range : encode_range(range);
      for(var R = rng.s.r; R <= rng.e.r; ++R) for(var C = rng.s.c; C <= rng.e.c; ++C) {
        var cell = ws_get_cell_stub(ws, R, C);
        cell.t = 'n';
        cell.F = rngstr;
        delete cell.v;
        if(R == rng.s.r && C == rng.s.c) cell.f = formula;
      }
      return ws;
    };

    return utils;
  })(utils);

  if(has_buf && typeof require != 'undefined') (function() {
    var Readable = {}.Readable;

    var write_csv_stream = function(sheet, opts) {
      var stream = Readable();
      var o = opts == null ? {} : opts;
      if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
      var r = safe_decode_range(sheet["!ref"]);
      var FS = o.FS !== undefined ? o.FS : ",", fs = FS.charCodeAt(0);
      var RS = o.RS !== undefined ? o.RS : "\n", rs = RS.charCodeAt(0);
      var endregex = new RegExp((FS=="|" ? "\\|" : FS)+"+$");
      var row = "", cols = [];
      o.dense = Array.isArray(sheet);
      var colinfo = o.skipHidden && sheet["!cols"] || [];
      var rowinfo = o.skipHidden && sheet["!rows"] || [];
      for(var C = r.s.c; C <= r.e.c; ++C) if (!((colinfo[C]||{}).hidden)) cols[C] = encode_col(C);
      var R = r.s.r;
      var BOM = false;
      stream._read = function() {
        if(!BOM) { BOM = true; return stream.push("\uFEFF"); }
        if(R > r.e.r) return stream.push(null);
        while(R <= r.e.r) {
          ++R;
          if ((rowinfo[R-1]||{}).hidden) continue;
          row = make_csv_row(sheet, r, R-1, cols, fs, rs, FS, o);
          if(row != null) {
            if(o.strip) row = row.replace(endregex,"");
            stream.push(row + RS);
            break;
          }
        }
      };
      return stream;
    };

    var write_html_stream = function(ws, opts) {
      var stream = Readable();

      var o = opts || {};
      var header = o.header != null ? o.header : HTML_.BEGIN;
      var footer = o.footer != null ? o.footer : HTML_.END;
      stream.push(header);
      var r = decode_range(ws['!ref']);
      o.dense = Array.isArray(ws);
      stream.push(HTML_._preamble(ws, r, o));
      var R = r.s.r;
      var end = false;
      stream._read = function() {
        if(R > r.e.r) {
          if(!end) { end = true; stream.push("</table>" + footer); }
          return stream.push(null);
        }
        while(R <= r.e.r) {
          stream.push(HTML_._row(ws, r, R, o));
          ++R;
          break;
        }
      };
      return stream;
    };

    var write_json_stream = function(sheet, opts) {
      var stream = Readable({objectMode:true});

      if(sheet == null || sheet["!ref"] == null) { stream.push(null); return stream; }
      var val = {t:'n',v:0}, header = 0, offset = 1, hdr = [], v=0, vv="";
      var r = {s:{r:0,c:0},e:{r:0,c:0}};
      var o = opts || {};
      var range = o.range != null ? o.range : sheet["!ref"];
      if(o.header === 1) header = 1;
      else if(o.header === "A") header = 2;
      else if(Array.isArray(o.header)) header = 3;
      switch(typeof range) {
        case 'string': r = safe_decode_range(range); break;
        case 'number': r = safe_decode_range(sheet["!ref"]); r.s.r = range; break;
        default: r = range;
      }
      if(header > 0) offset = 0;
      var rr = encode_row(r.s.r);
      var cols = [];
      var counter = 0;
      var dense = Array.isArray(sheet);
      var R = r.s.r, C = 0, CC = 0;
      if(dense && !sheet[R]) sheet[R] = [];
      for(C = r.s.c; C <= r.e.c; ++C) {
        cols[C] = encode_col(C);
        val = dense ? sheet[R][C] : sheet[cols[C] + rr];
        switch(header) {
          case 1: hdr[C] = C - r.s.c; break;
          case 2: hdr[C] = cols[C]; break;
          case 3: hdr[C] = o.header[C - r.s.c]; break;
          default:
            if(val == null) val = {w: "__EMPTY", t: "s"};
            vv = v = format_cell(val, null, o);
            counter = 0;
            for(CC = 0; CC < hdr.length; ++CC) if(hdr[CC] == vv) vv = v + "_" + (++counter);
            hdr[C] = vv;
        }
      }
      R = r.s.r + offset;
      stream._read = function() {
        if(R > r.e.r) return stream.push(null);
        while(R <= r.e.r) {
          //if ((rowinfo[R-1]||{}).hidden) continue;
          var row = make_json_row(sheet, r, R, cols, header, hdr, dense, o);
          ++R;
          if((row.isempty === false) || (header === 1 ? o.blankrows !== false : !!o.blankrows)) {
            stream.push(row.row);
            break;
          }
        }
      };
      return stream;
    };

    XLSX.stream = {
      to_json: write_json_stream,
      to_html: write_html_stream,
      to_csv: write_csv_stream
    };
  })();
  /**
   * 样式魔改区 -- start
   */
  /////////////////////////////////////////////////////////////////////////////////////////////////////
  var XmlNode = (function () {
      function XmlNode(tagName, attributes, children) {

        if (!(this instanceof XmlNode)) {
          return new XmlNode(tagName, attributes, children);
        }
        this.tagName = tagName;
        this._attributes = attributes || {};
        this._children = children || [];
        this._prefix = '';
        return this;
      }

      XmlNode.prototype.createElement = function () {
        return new XmlNode(arguments)
      }

      XmlNode.prototype.children = function() {
        return this._children;
      }

      XmlNode.prototype.append = function (node) {
        this._children.push(node);
        return this;
      }

      XmlNode.prototype.prefix = function (prefix) {
        if (arguments.length==0) { return this._prefix;}
        this._prefix = prefix;
        return this;
      }

      XmlNode.prototype.attr = function (attr, value) {
        if (value == undefined) {
          delete this._attributes[attr];
          return this;
        }
        if (arguments.length == 0) {
          return this._attributes;
        }
        else if (typeof attr == 'string' && arguments.length == 1) {
          return this._attributes.attr[attr];
        }
        if (typeof attr == 'object' && arguments.length == 1) {
          for (var key in attr) {
            this._attributes[key] = attr[key];
          }
        }
        else if (arguments.length == 2 && typeof attr == 'string') {
          this._attributes[attr] = value;
        }
        return this;
      }

      var APOS = "'"; var QUOTE = '"'
      var ESCAPED_QUOTE = {  }
      ESCAPED_QUOTE[QUOTE] = '&quot;'
      ESCAPED_QUOTE[APOS] = '&apos;'

      XmlNode.prototype.escapeAttributeValue = function(att_value) {
        return '"' + att_value.replace(/\"/g,'&quot;') + '"';// TODO Extend with four other codes

      }

      XmlNode.prototype.toXml = function (node) {
        if (!node) node = this;
        var xml = node._prefix;
        xml += '<' + node.tagName;
        if (node._attributes) {
          for (var key in node._attributes) {
            xml += ' ' + key + '=' + this.escapeAttributeValue(''+node._attributes[key]) + ''
          }
        }
        if (node._children && node._children.length > 0) {
          xml += ">";
          for (var i = 0; i < node._children.length; i++) {
            xml += this.toXml(node._children[i]);
          }
          xml += '</' + node.tagName + '>';
        }
        else {
          xml += '/>';
        }
        return xml;
      }
      return XmlNode;
    })();
  /////////////////////////////////////////////////////////////////////////////////////////////////////
  var StyleBuilder = function (options) {

    var customNumFmtId = 164;



    var table_fmt = {
      0:  'General',
      1:  '0',
      2:  '0.00',
      3:  '#,##0',
      4:  '#,##0.00',
      9:  '0%',
      10: '0.00%',
      11: '0.00E+00',
      12: '# ?/?',
      13: '# ??/??',
      14: 'm/d/yy',
      15: 'd-mmm-yy',
      16: 'd-mmm',
      17: 'mmm-yy',
      18: 'h:mm AM/PM',
      19: 'h:mm:ss AM/PM',
      20: 'h:mm',
      21: 'h:mm:ss',
      22: 'm/d/yy h:mm',
      37: '#,##0 ;(#,##0)',
      38: '#,##0 ;[Red](#,##0)',
      39: '#,##0.00;(#,##0.00)',
      40: '#,##0.00;[Red](#,##0.00)',
      45: 'mm:ss',
      46: '[h]:mm:ss',
      47: 'mmss.0',
      48: '##0.0E+0',
      49: '@',
      56: '"上午/下午 "hh"時"mm"分"ss"秒 "'    };
    var fmt_table = {};

    for (var idx in table_fmt) {
      fmt_table[table_fmt[idx]] = idx;
    }


    // cache style specs to avoid excessive duplication
    var _hashIndex = {};
    var _listIndex = [];

    return {

      initialize: function (options) {

        this.$fonts = XmlNode('fonts').attr('count',0).attr("x14ac:knownFonts","1");
        this.$fills = XmlNode('fills').attr('count',0);
        this.$borders = XmlNode('borders').attr('count',0);
        this.$numFmts = XmlNode('numFmts').attr('count',0);
        this.$cellStyleXfs = XmlNode('cellStyleXfs');
        this.$xf = XmlNode('xf')
          .attr('numFmtId', 0)
          .attr('fontId', 0)
          .attr('fillId', 0)
          .attr('borderId', 0);

        this.$cellXfs = XmlNode('cellXfs').attr('count',0);
        this.$cellStyles = XmlNode('cellStyles')
          .append(XmlNode('cellStyle')
            .attr('name', 'Normal')
            .attr('xfId',0)
            .attr('builtinId',0)
          );
        this.$dxfs = XmlNode('dxfs').attr('count', "0");
        this.$tableStyles = XmlNode('tableStyles')
          .attr('count','0')
          .attr('defaultTableStyle','TableStyleMedium9')
          .attr('defaultPivotStyle','PivotStyleMedium4')


        this.$styles = XmlNode('styleSheet')
          .attr('xmlns:mc','http://schemas.openxmlformats.org/markup-compatibility/2006')
          .attr('xmlns:x14ac','http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac')
          .attr('xmlns','http://schemas.openxmlformats.org/spreadsheetml/2006/main')
          .attr('mc:Ignorable','x14ac')
          .prefix('<?xml version="1.0" encoding="UTF-8" standalone="yes"?>')
          .append(this.$numFmts)
          .append(this.$fonts)
          .append(this.$fills)
          .append(this.$borders)
          .append(this.$cellStyleXfs.append(this.$xf))
          .append(this.$cellXfs)
          .append(this.$cellStyles)
          .append(this.$dxfs)
          .append(this.$tableStyles);


        // need to specify styles at index 0 and 1.
        // the second style MUST be gray125 for some reason

        var defaultStyle = options.defaultCellStyle || {};
        if (!defaultStyle.font) defaultStyle.font = {name: 'Calibri', sz: '12'};
        if (!defaultStyle.font.name) defaultStyle.font.name = 'Calibri';
        if (!defaultStyle.font.sz) defaultStyle.font.sz = 11;
        if (!defaultStyle.fill) defaultStyle.fill = {  patternType: "none", fgColor: {}};
        if (!defaultStyle.border) defaultStyle.border = {};
        if (!defaultStyle.numFmt) defaultStyle.numFmt = 0;

        this.defaultStyle = defaultStyle;

        var gray125Style = JSON.parse(JSON.stringify(defaultStyle));
        gray125Style.fill = {patternType: "gray125", fgColor: { }}

        this.addStyles([defaultStyle, gray125Style]);
        return this;
      },

      // create a style entry and returns an integer index that can be used in the cell .s property
      // these format of this object follows the emerging Common Spreadsheet Format
      addStyle: function (attributes) {

        var hashKey = JSON.stringify(attributes);
        var index = _hashIndex[hashKey];
        if (index == undefined) {

          index = this._addXf(attributes); //_listIndex.push(attributes) -1;
          _hashIndex[hashKey] = index;
        }
        else {
          index = _hashIndex[hashKey];
        }
        return index;
      },

      // create style entries and returns array of integer indexes that can be used in cell .s property
      addStyles: function (styles) {
        var self = this;
        return styles.map(function (style) {
          return self.addStyle(style);
        })
      },

      _duckTypeStyle: function(attributes) {

        if (typeof attributes == 'object' && (attributes.patternFill || attributes.fgColor)) {
          return {fill: attributes }; // this must be read via XLSX.parseFile(...)
        }
        else if (attributes.font || attributes.numFmt || attributes.border || attributes.fill) {
          return attributes;
        }
        else {
          return this._getStyleCSS(attributes)
        }
      },

      _getStyleCSS: function(css) {
        return css; //TODO
      },

      // Create an <xf> record for the style as well as corresponding <font>, <fill>, <border>, <numfmts>
      // Right now this is simple and creates a <font>, <fill>, <border>, <numfmts> for every <xf>
      // We could perhaps get fancier and avoid duplicating  auxiliary entries as Excel presumably intended, but bother.
      _addXf: function (attributes) {


        var fontId = this._addFont(attributes.font);
        var fillId = this._addFill(attributes.fill);
        var borderId = this._addBorder(attributes.border);
        var numFmtId = this._addNumFmt(attributes.numFmt);

        var $xf = XmlNode('xf')
          .attr("numFmtId", numFmtId)
          .attr("fontId", fontId)
          .attr("fillId", fillId)
          .attr("borderId", borderId)
          .attr("xfId", "0");

        if (fontId > 0) {
          $xf.attr('applyFont', "1");
        }
        if (fillId > 0) {
          $xf.attr('applyFill', "1");
        }
        if (borderId > 0) {
          $xf.attr('applyBorder', "1");
        }
        if (numFmtId > 0) {
          $xf.attr('applyNumberFormat', "1");
        }

        if (attributes.alignment) {
          var $alignment = XmlNode('alignment');
          if (attributes.alignment.horizontal) { $alignment.attr('horizontal', attributes.alignment.horizontal);}
          if (attributes.alignment.vertical)  { $alignment.attr('vertical', attributes.alignment.vertical);}
          if (attributes.alignment.indent)  { $alignment.attr('indent', attributes.alignment.indent);}
          if (attributes.alignment.readingOrder)  { $alignment.attr('readingOrder', attributes.alignment.readingOrder);}
          if (attributes.alignment.wrapText)  { $alignment.attr('wrapText', attributes.alignment.wrapText);}
          if (attributes.alignment.textRotation!=undefined)  { $alignment.attr('textRotation', attributes.alignment.textRotation);}

          $xf.append($alignment).attr('applyAlignment',1)

        }
        this.$cellXfs.append($xf);
        var count = +this.$cellXfs.children().length;

        this.$cellXfs.attr('count', count);
        return count - 1;
      },

      _addFont: function (attributes) {

        if (!attributes) {  return 0; }

        var $font = XmlNode('font')
          .append(XmlNode('sz').attr('val', attributes.sz || this.defaultStyle.font.sz))
          .append(XmlNode('name').attr('val', attributes.name || this.defaultStyle.font.name))

        if (attributes.bold) $font.append(XmlNode('b'));
        if (attributes.underline)  $font.append(XmlNode('u'));
        if (attributes.italic)  $font.append(XmlNode('i'));
        if (attributes.strike)  $font.append(XmlNode('strike'));
        if (attributes.outline)  $font.append(XmlNode('outline'));
        if (attributes.shadow)  $font.append(XmlNode('shadow'));

        if (attributes.vertAlign) {
          $font.append(XmlNode('vertAlign').attr('val', attributes.vertAlign))
        }


        if (attributes.color) {
          if (attributes.color.theme) {
            $font.append(XmlNode('color').attr('theme', attributes.color.theme))

            if (attributes.color.tint) { //tint only if theme
              $font.append(XmlNode('tint').attr('theme', attributes.color.tint))
            }

          } else if (attributes.color.rgb) { // not both rgb and theme
            $font.append(XmlNode('color').attr('rgb', attributes.color.rgb))
          }
        }

        this.$fonts.append($font);

        var count = this.$fonts.children().length;
        this.$fonts.attr('count', count);
        return count - 1;
      },

      _addNumFmt: function (numFmt) {
        if (!numFmt) { return 0; }

        if (typeof numFmt == 'string') {
          var numFmtIdx = fmt_table[numFmt];
          if (numFmtIdx >= 0) {
            return numFmtIdx; // we found a match against built in formats
          }
        }

        if (/^[0-9]+$/.exec(numFmt)) {
          return numFmt; // we're matching an integer against some known code
        }
        numFmt = numFmt
          .replace(/&/g, '&amp;')
          .replace(/</g, '&lt;')
          .replace(/>/g, '&gt;')
          .replace(/"/g, '&quot;')
          .replace(/'/g, '&apos;');

        var $numFmt = XmlNode('numFmt')
          .attr('numFmtId', (++customNumFmtId))
          .attr('formatCode', numFmt);

        this.$numFmts.append($numFmt);

        var count = this.$numFmts.children().length;
        this.$numFmts.attr('count', count);
        return customNumFmtId ;
      },

      _addFill: function (attributes) {

        if (!attributes) { return 0; }

        var $patternFill = XmlNode('patternFill')
          .attr('patternType', attributes.patternType || 'solid');

        if (attributes.fgColor) {
          var $fgColor = XmlNode('fgColor');

          //Excel doesn't like it when we set both rgb and theme+tint, but xlsx.parseFile() sets both
          //var $fgColor = createElement('<fgColor/>', null, null, {xmlMode: true}).attr(attributes.fgColor)
          if (attributes.fgColor.rgb) {

            if (attributes.fgColor.rgb.length == 6) {
              attributes.fgColor.rgb = "FF" + attributes.fgColor.rgb /// add alpha to an RGB as Excel expects aRGB
            }

            $fgColor.attr('rgb', attributes.fgColor.rgb);
            $patternFill.append($fgColor);
          }
          else if (attributes.fgColor.theme) {
            $fgColor.attr('theme', attributes.fgColor.theme);
            if (attributes.fgColor.tint) {
              $fgColor.attr('tint', attributes.fgColor.tint);
            }
            $patternFill.append($fgColor);
          }

          if (!attributes.bgColor) {
            attributes.bgColor = { "indexed": "64"}
          }
        }

        if (attributes.bgColor) {
          var $bgColor = XmlNode('bgColor').attr(attributes.bgColor);
          $patternFill.append($bgColor);
        }

        var $fill = XmlNode('fill')
          .append($patternFill);

        this.$fills.append($fill);

        var count = this.$fills.children().length;
        this.$fills.attr('count', count);
        return count - 1;
      },

      _getSubBorder: function(direction, spec) {

        var $direction = XmlNode(direction);
        if (spec){
          if (spec.style) $direction.attr('style', spec.style);
          if (spec.color) {
            var $color = XmlNode('color');
            if (spec.color.auto) {
              $color.attr('auto', spec.color.auto);
            }
            else if (spec.color.rgb) {
              $color.attr('rgb', spec.color.rgb);
            }
            else if (spec.color.theme || spec.color.tint) {
              $color.attr('theme', spec.color.theme || "1");
              $color.attr('tint', spec.color.tint || "0");
            }
            $direction.append($color)
          }
        }
        return $direction;
      },

      _addBorder: function (attributes) {
        if (!attributes) { return 0; }

        var self = this;

        var $border = XmlNode('border')
          .attr("diagonalUp",attributes.diagonalUp)
          .attr("diagonalDown",attributes.diagonalDown);

        var directions = ["left","right","top","bottom","diagonal"];

        directions.forEach(function(direction) {
          $border.append(self._getSubBorder(direction, attributes[direction]))
        });
        this.$borders.append($border);

        var count = this.$borders.children().length;
        this.$borders.attr('count', count);
        return count -1;
      },

      toXml: function () {
        return this.$styles.toXml();
      }
    }.initialize(options||{});
  }
  /**
   * 样式魔改区 -- end
   */

  XLSX.parse_xlscfb = parse_xlscfb;
  XLSX.parse_ods = parse_ods;
  XLSX.parse_fods = parse_fods;
  XLSX.write_ods = write_ods;
  XLSX.parse_zip = parse_zip;
  XLSX.read = readSync; //xlsread
  XLSX.readFile = readFileSync; //readFile
  XLSX.readFileSync = readFileSync;
  XLSX.write = writeSync;
  XLSX.writeFile = writeFileSync;
  XLSX.writeFileSync = writeFileSync;
  XLSX.writeFileAsync = writeFileAsync;
  XLSX.utils = utils;
  XLSX.SSF = SSF;
  XLSX.CFB = CFB;
}
make_xlsx_lib(XLSX);
export default XLSX;
/*global define */
// if(typeof exports !== 'undefined') make_xlsx_lib(exports);
// else if(typeof module !== 'undefined' && module.exports) make_xlsx_lib(module.exports);
// else if(typeof define === 'function' && define.amd) define('xlsx', function() { if(!XLSX.version) make_xlsx_lib(XLSX); return XLSX; });
// else make_xlsx_lib(XLSX);
// make_xlsx_lib(XLSX);
/*exported XLS, ODS */
// var XLS = XLSX, ODS = XLSX;
